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    82 vulnerabilities found for mbed_tls by trustedfirmware

    CVE-2026-34877 (GCVE-0-2026-34877)

    Vulnerability from nvd – Published: 2026-04-02 00:00 – Updated: 2026-04-02 17:52
    VLAI
    Summary
    An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection of serialized SSL context or session structures allows an attacker who can modify the serialized structures to induce memory corruption, leading to arbitrary code execution. This is caused by Incorrect Use of Privileged APIs.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-250 - Execution with Unnecessary Privileges
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    References
    Show details on NVD website
    To clipboard 

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              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
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              "scope": "UNCHANGED",
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                "timestamp": "2026-04-02T17:51:48.970447Z",
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              },
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          }
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            ]
          },
          {
            "descriptions": [
              {
                "cweId": "CWE-502",
                "description": "CWE-502 Deserialization of Untrusted Data",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-02T17:52:53.594Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "vendor": "n/a",
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      ],
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      ],
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        "dateUpdated": "2026-04-02T16:37:49.459Z",
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      },
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        {
          "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/"
        },
        {
          "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-serialized-data/"
        }
      ]
    }
  },
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}

    CVE-2026-34876 (GCVE-0-2026-34876)

    Vulnerability from nvd – Published: 2026-04-02 00:00 – Updated: 2026-04-02 15:54
    VLAI
    Summary
    An issue was discovered in Mbed TLS 3.x before 3.6.6. An out-of-bounds read vulnerability in mbedtls_ccm_finish() in library/ccm.c allows attackers to obtain adjacent CCM context data via invocation of the multipart CCM API with an oversized tag_len parameter. This is caused by missing validation of the tag_len parameter against the size of the internal 16-byte authentication buffer. The issue affects the public multipart CCM API in Mbed TLS 3.x, where mbedtls_ccm_finish() can be invoked directly by applications. In Mbed TLS 4.x versions prior to the fix, the same missing validation exists in the internal implementation; however, the function is not exposed as part of the public API. Exploitation requires application-level invocation of the multipart CCM API.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Show details on NVD website
    To clipboard 

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              {
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                "description": "CWE-125 Out-of-bounds Read",
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            ]
          }
        ],
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          "dateUpdated": "2026-04-02T15:54:45.230Z",
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      },
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          "url": "https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/"
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          "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-ccm-finish-boundary-check/"
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    CVE-2026-34873 (GCVE-0-2026-34873)

    Vulnerability from nvd – Published: 2026-04-01 00:00 – Updated: 2026-04-02 16:24
    VLAI
    Summary
    An issue was discovered in Mbed TLS 3.5.0 through 4.0.0. Client impersonation can occur while resuming a TLS 1.3 session.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-287 - Improper Authentication
    Assigner
    References
    Show details on NVD website
    To clipboard 

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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "confidentialityImpact": "HIGH",
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                "timestamp": "2026-04-02T15:54:35.519227Z",
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    CVE-2026-34874 (GCVE-0-2026-34874)

    Vulnerability from nvd – Published: 2026-04-01 00:00 – Updated: 2026-04-01 19:24
    VLAI
    Summary
    An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-476 - NULL Pointer Dereference
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
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    CVE-2026-25835 (GCVE-0-2026-25835)

    Vulnerability from nvd – Published: 2026-04-01 00:00 – Updated: 2026-04-01 20:07
    VLAI
    Summary
    Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse seeds in a Pseudo-Random Number Generator (PRNG).
    Severity
    7.7 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-335 - Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
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    CVE-2026-25833 (GCVE-0-2026-25833)

    Vulnerability from nvd – Published: 2026-04-01 00:00 – Updated: 2026-04-01 19:21
    VLAI
    Summary
    Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509_inet_pton_ipv6() function
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2026-34875 (GCVE-0-2026-34875)

    Vulnerability from nvd – Published: 2026-04-01 00:00 – Updated: 2026-04-01 18:29
    VLAI
    Summary
    An issue was discovered in Mbed TLS through 3.6.5 and TF-PSA-Crypto 1.0.0. A buffer overflow can occur in public key export for FFDH keys.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2026-25834 (GCVE-0-2026-25834)

    Vulnerability from nvd – Published: 2026-04-01 00:00 – Updated: 2026-04-01 18:54
    VLAI
    Summary
    Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade.
    Severity
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-295 - Improper Certificate Validation
    • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2025-49087 (GCVE-0-2025-49087)

    Vulnerability from nvd – Published: 2025-07-20 00:00 – Updated: 2025-07-21 20:37
    VLAI
    Summary
    In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker to recover the plaintext when PKCS#7 padding mode is used.
    Severity
    4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 3.6.1 , < 3.6.4 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-49601 (GCVE-0-2025-49601)

    Vulnerability from nvd – Published: 2025-07-04 00:00 – Updated: 2025-07-08 14:36
    VLAI
    Summary
    In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_import_public_key does not check that the input buffer is at least 4 bytes before reading a 32-bit field, allowing a possible out-of-bounds read on truncated input. Specifically, an out-of-bounds read in mbedtls_lms_import_public_key allows context-dependent attackers to trigger a crash or limited adjacent-memory disclosure by supplying a truncated LMS (Leighton-Micali Signature) public-key buffer under four bytes. An LMS public key starts with a 4-byte type indicator. The function mbedtls_lms_import_public_key reads this type indicator before validating the size of its input.
    Severity
    4.8 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 3.3.0 , < 3.6.4 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-49600 (GCVE-0-2025-49600)

    Vulnerability from nvd – Published: 2025-07-04 00:00 – Updated: 2025-07-08 14:36
    VLAI
    Summary
    In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_verify may accept invalid signatures if hash computation fails and internal errors go unchecked, enabling LMS (Leighton-Micali Signature) forgery in a fault scenario. Specifically, unchecked return values in mbedtls_lms_verify allow an attacker (who can induce a hardware hash accelerator fault) to bypass LMS signature verification by reusing stale stack data, resulting in acceptance of an invalid signature. In mbedtls_lms_verify, the return values of the internal Merkle tree functions create_merkle_leaf_value and create_merkle_internal_value are not checked. These functions return an integer that indicates whether the call succeeded or not. If a failure occurs, the output buffer (Tc_candidate_root_node) may remain uninitialized, and the result of the signature verification is unpredictable. When the software implementation of SHA-256 is used, these functions will not fail. However, with hardware-accelerated hashing, an attacker could use fault injection against the accelerator to bypass verification.
    Severity
    4.9 (Medium)
    CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-325 - Missing Cryptographic Step
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 3.3.0 , < 3.6.4 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-27810 (GCVE-0-2025-27810)

    Vulnerability from nvd – Published: 2025-03-25 00:00 – Updated: 2025-03-25 14:37
    VLAI
    Summary
    Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.
    Severity
    5.4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-908 - Use of Uninitialized Resource
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 0 , < 2.28.10 (semver)
    Affected: 3.0.0 , < 3.6.3 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-27809 (GCVE-0-2025-27809)

    Vulnerability from nvd – Published: 2025-03-25 00:00 – Updated: 2025-03-25 16:49
    VLAI
    Summary
    Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname.
    Severity
    5.4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-1188 - Initialization of a Resource with an Insecure Default
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 0 , < 2.28.10 (semver)
    Affected: 3.0.0 , < 3.6.3 (semver)
    		Create a notification for this product.
    Show details on NVD website
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    CVE-2024-49195 (GCVE-0-2024-49195)

    Vulnerability from nvd – Published: 2024-10-15 00:00 – Updated: 2024-11-25 20:53
    VLAI
    Summary
    Mbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque key pair
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-787 - Out-of-bounds Write
    Assigner
    References
    Impacted products
    Vendor Product Version
    mbed mbedtls Affected: 3.5.0 , < 3.6.2 (custom)
        cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*
    		 Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2024-45159 (GCVE-0-2024-45159)

    Vulnerability from nvd – Published: 2024-09-05 00:00 – Updated: 2025-03-13 19:47
    VLAI
    Summary
    An issue was discovered in Mbed TLS 3.x before 3.6.1. With TLS 1.3, when a server enables optional authentication of the client, if the client-provided certificate does not have appropriate values in if keyUsage or extKeyUsage extensions, then the return value of mbedtls_ssl_get_verify_result() would incorrectly have the MBEDTLS_X509_BADCERT_KEY_USAGE and MBEDTLS_X509_BADCERT_KEY_USAGE bits clear. As a result, an attacker that had a certificate valid for uses other than TLS client authentication would nonetheless be able to use it for TLS client authentication. Only TLS 1.3 servers were affected, and only with optional authentication (with required authentication, the handshake would be aborted with a fatal alert).
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-295 - Improper Certificate Validation
    Assigner
    References
    Show details on NVD website
    To clipboard 

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          "value": "An issue was discovered in Mbed TLS 3.x before 3.6.1. With TLS 1.3, when a server enables optional authentication of the client, if the client-provided certificate does not have appropriate values in if keyUsage or extKeyUsage extensions, then the return value of mbedtls_ssl_get_verify_result() would incorrectly have the MBEDTLS_X509_BADCERT_KEY_USAGE and MBEDTLS_X509_BADCERT_KEY_USAGE bits clear. As a result, an attacker that had a certificate valid for uses other than TLS client authentication would nonetheless be able to use it for TLS client authentication. Only TLS 1.3 servers were affected, and only with optional authentication (with required authentication, the handshake would be aborted with a fatal alert)."
        }
      ],
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        {
          "descriptions": [
            {
              "description": "n/a",
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              "type": "text"
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          ]
        }
      ],
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        "dateUpdated": "2024-09-05T18:41:15.487Z",
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          "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/"
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          "url": "https://github.com/Mbed-TLS/mbedtls/releases/"
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    "cveId": "CVE-2024-45159",
    "datePublished": "2024-09-05T00:00:00.000Z",
    "dateReserved": "2024-08-22T00:00:00.000Z",
    "dateUpdated": "2025-03-13T19:47:36.383Z",
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    CVE-2024-45158 (GCVE-0-2024-45158)

    Vulnerability from nvd – Published: 2024-09-05 00:00 – Updated: 2024-11-25 20:54
    VLAI
    Summary
    An issue was discovered in Mbed TLS 3.6 before 3.6.1. A stack buffer overflow in mbedtls_ecdsa_der_to_raw() and mbedtls_ecdsa_raw_to_der() can occur when the bits parameter is larger than the largest supported curve. In some configurations with PSA disabled, all values of bits are affected. (This never happens in internal library calls, but can affect applications that call these functions directly.)
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    mbed mbedtls Affected: 3.6 , < 3.6.1 (custom)
        cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*
    		 Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
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                "version": "3.6",
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            ]
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              "attackComplexity": "LOW",
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                "description": "CWE-121 Stack-based Buffer Overflow",
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        "providerMetadata": {
          "dateUpdated": "2024-11-25T20:54:01.597Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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          "versions": [
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        }
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        "dateUpdated": "2024-09-05T18:39:15.981Z",
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    CVE-2026-34876 (GCVE-0-2026-34876)

    Vulnerability from cvelistv5 – Published: 2026-04-02 00:00 – Updated: 2026-04-02 15:54
    VLAI
    Summary
    An issue was discovered in Mbed TLS 3.x before 3.6.6. An out-of-bounds read vulnerability in mbedtls_ccm_finish() in library/ccm.c allows attackers to obtain adjacent CCM context data via invocation of the multipart CCM API with an oversized tag_len parameter. This is caused by missing validation of the tag_len parameter against the size of the internal 16-byte authentication buffer. The issue affects the public multipart CCM API in Mbed TLS 3.x, where mbedtls_ccm_finish() can be invoked directly by applications. In Mbed TLS 4.x versions prior to the fix, the same missing validation exists in the internal implementation; however, the function is not exposed as part of the public API. Exploitation requires application-level invocation of the multipart CCM API.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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                "description": "CWE-125 Out-of-bounds Read",
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-02T15:54:45.230Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        }
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          "url": "https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/"
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          "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-ccm-finish-boundary-check/"
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    CVE-2026-34877 (GCVE-0-2026-34877)

    Vulnerability from cvelistv5 – Published: 2026-04-02 00:00 – Updated: 2026-04-02 17:52
    VLAI
    Summary
    An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection of serialized SSL context or session structures allows an attacker who can modify the serialized structures to induce memory corruption, leading to arbitrary code execution. This is caused by Incorrect Use of Privileged APIs.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-250 - Execution with Unnecessary Privileges
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
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        "metrics": [
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              "attackComplexity": "LOW",
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    CVE-2026-25834 (GCVE-0-2026-25834)

    Vulnerability from cvelistv5 – Published: 2026-04-01 00:00 – Updated: 2026-04-01 18:54
    VLAI
    Summary
    Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade.
    Severity
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-295 - Improper Certificate Validation
    • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
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        "metrics": [
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    CVE-2026-25833 (GCVE-0-2026-25833)

    Vulnerability from cvelistv5 – Published: 2026-04-01 00:00 – Updated: 2026-04-01 19:21
    VLAI
    Summary
    Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509_inet_pton_ipv6() function
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
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      {
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              "attackVector": "NETWORK",
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              "baseScore": 7.5,
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              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2026-04-01T19:21:14.363192Z",
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          }
        ],
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            ]
          }
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    CVE-2026-34875 (GCVE-0-2026-34875)

    Vulnerability from cvelistv5 – Published: 2026-04-01 00:00 – Updated: 2026-04-01 18:29
    VLAI
    Summary
    An issue was discovered in Mbed TLS through 3.6.5 and TF-PSA-Crypto 1.0.0. A buffer overflow can occur in public key export for FFDH keys.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2026-34873 (GCVE-0-2026-34873)

    Vulnerability from cvelistv5 – Published: 2026-04-01 00:00 – Updated: 2026-04-02 16:24
    VLAI
    Summary
    An issue was discovered in Mbed TLS 3.5.0 through 4.0.0. Client impersonation can occur while resuming a TLS 1.3 session.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-287 - Improper Authentication
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2026-34874 (GCVE-0-2026-34874)

    Vulnerability from cvelistv5 – Published: 2026-04-01 00:00 – Updated: 2026-04-01 19:24
    VLAI
    Summary
    An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-476 - NULL Pointer Dereference
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2026-25835 (GCVE-0-2026-25835)

    Vulnerability from cvelistv5 – Published: 2026-04-01 00:00 – Updated: 2026-04-01 20:07
    VLAI
    Summary
    Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse seeds in a Pseudo-Random Number Generator (PRNG).
    Severity
    7.7 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-335 - Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2025-49087 (GCVE-0-2025-49087)

    Vulnerability from cvelistv5 – Published: 2025-07-20 00:00 – Updated: 2025-07-21 20:37
    VLAI
    Summary
    In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker to recover the plaintext when PKCS#7 padding mode is used.
    Severity
    4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 3.6.1 , < 3.6.4 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-49601 (GCVE-0-2025-49601)

    Vulnerability from cvelistv5 – Published: 2025-07-04 00:00 – Updated: 2025-07-08 14:36
    VLAI
    Summary
    In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_import_public_key does not check that the input buffer is at least 4 bytes before reading a 32-bit field, allowing a possible out-of-bounds read on truncated input. Specifically, an out-of-bounds read in mbedtls_lms_import_public_key allows context-dependent attackers to trigger a crash or limited adjacent-memory disclosure by supplying a truncated LMS (Leighton-Micali Signature) public-key buffer under four bytes. An LMS public key starts with a 4-byte type indicator. The function mbedtls_lms_import_public_key reads this type indicator before validating the size of its input.
    Severity
    4.8 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 3.3.0 , < 3.6.4 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-49600 (GCVE-0-2025-49600)

    Vulnerability from cvelistv5 – Published: 2025-07-04 00:00 – Updated: 2025-07-08 14:36
    VLAI
    Summary
    In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_verify may accept invalid signatures if hash computation fails and internal errors go unchecked, enabling LMS (Leighton-Micali Signature) forgery in a fault scenario. Specifically, unchecked return values in mbedtls_lms_verify allow an attacker (who can induce a hardware hash accelerator fault) to bypass LMS signature verification by reusing stale stack data, resulting in acceptance of an invalid signature. In mbedtls_lms_verify, the return values of the internal Merkle tree functions create_merkle_leaf_value and create_merkle_internal_value are not checked. These functions return an integer that indicates whether the call succeeded or not. If a failure occurs, the output buffer (Tc_candidate_root_node) may remain uninitialized, and the result of the signature verification is unpredictable. When the software implementation of SHA-256 is used, these functions will not fail. However, with hardware-accelerated hashing, an attacker could use fault injection against the accelerator to bypass verification.
    Severity
    4.9 (Medium)
    CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-325 - Missing Cryptographic Step
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 3.3.0 , < 3.6.4 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-27810 (GCVE-0-2025-27810)

    Vulnerability from cvelistv5 – Published: 2025-03-25 00:00 – Updated: 2025-03-25 14:37
    VLAI
    Summary
    Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.
    Severity
    5.4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-908 - Use of Uninitialized Resource
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 0 , < 2.28.10 (semver)
    Affected: 3.0.0 , < 3.6.3 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-27809 (GCVE-0-2025-27809)

    Vulnerability from cvelistv5 – Published: 2025-03-25 00:00 – Updated: 2025-03-25 16:49
    VLAI
    Summary
    Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname.
    Severity
    5.4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-1188 - Initialization of a Resource with an Insecure Default
    Assigner
    References
    Impacted products
    Vendor Product Version
    Mbed mbedtls Affected: 0 , < 2.28.10 (semver)
    Affected: 3.0.0 , < 3.6.3 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2024-49195 (GCVE-0-2024-49195)

    Vulnerability from cvelistv5 – Published: 2024-10-15 00:00 – Updated: 2024-11-25 20:53
    VLAI
    Summary
    Mbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque key pair
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-787 - Out-of-bounds Write
    Assigner
    References
    Impacted products
    Vendor Product Version
    mbed mbedtls Affected: 3.5.0 , < 3.6.2 (custom)
        cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*
    		 Create a notification for this product.
    Show details on NVD website
    To clipboard 

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          {
            "cpes": [
              "cpe:2.3:a:mbed:mbedtls:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "mbedtls",
            "vendor": "mbed",
            "versions": [
              {
                "lessThan": "3.6.2",
                "status": "affected",
                "version": "3.5.0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-49195",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-17T17:16:25.840471Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-25T20:53:41.370Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Mbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque key pair"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-10-15T19:33:07.752Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/"
        },
        {
          "url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2024-10-1/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2024-49195",
    "datePublished": "2024-10-15T00:00:00.000Z",
    "dateReserved": "2024-10-13T00:00:00.000Z",
    "dateUpdated": "2024-11-25T20:53:41.370Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}