Common Weakness Enumeration

CWE-347

Allowed

Improper Verification of Cryptographic Signature

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

1127 vulnerabilities reference this CWE, most recent first.

CVE-2025-40758 (GCVE-0-2025-40758)

Vulnerability from cvelistv5 – Published: 2025-08-14 15:06 – Updated: 2025-08-14 15:18
VLAI
Summary
A vulnerability has been identified in Mendix SAML (Mendix 10.12 compatible) (All versions < V4.0.3), Mendix SAML (Mendix 10.21 compatible) (All versions < V4.1.2), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.21). Affected versions of the module insufficiently enforce signature validation and binding checks. This could allow unauthenticated remote attackers to hijack an account in specific SSO configurations.
Severity
8.7 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2025-36418 (GCVE-0-2025-36418)

Vulnerability from cvelistv5 – Published: 2026-01-20 15:50 – Updated: 2026-01-20 16:09
VLAI
Title
Multiple vulnerabilities found in IBM ApplinX.
Summary
IBM ApplinX 11.1 is vulnerable due to a privilege escalation vulnerability due to improper verification of JWT tokens. An attacker may be able to craft or modify a JSON web token in order to impersonate another user or to elevate their privileges.
Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
ibm
References
URL Tags
https://www.ibm.com/support/pages/node/7257446 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM ApplinX Affected: 11.1
    cpe:2.3:a:ibm:applinx:11.1:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-34503 (GCVE-0-2025-34503)

Vulnerability from cvelistv5 – Published: 2025-10-24 23:04 – Updated: 2025-10-27 15:57
VLAI
Title
Shuffle Master Deck Mate 1 Unauthenticated EEPROM Firmware Execution
Summary
Deck Mate 1 executes firmware directly from an external EEPROM without verifying authenticity or integrity. An attacker with physical access can replace or reflash the EEPROM to run arbitrary code that persists across reboots. Because this design predates modern secure-boot or signed-update mechanisms, affected systems should be physically protected or retired from service. The vendor has not indicated that firmware updates are available for this legacy model.
Severity
7 (High)
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
  • CWE-1326 - Missing Immutable Root of Trust in Hardware
Assigner
References
Impacted products
Credits
Joseph Tartaro of IOActive Enrique Nissim of IOActive Ethan Shackelford of IOActive
Show details on NVD website
To clipboard 

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CVE-2025-34500 (GCVE-0-2025-34500)

Vulnerability from cvelistv5 – Published: 2025-10-24 23:02 – Updated: 2025-10-27 15:21
VLAI
Title
Shuffle Master Deck Mate 2 Insecure Update Chain
Summary
Deck Mate 2's firmware update mechanism accepts packages without cryptographic signature verification, encrypts them with a single hard-coded AES key shared across devices, and uses a truncated HMAC for integrity validation. Attackers with access to the update interface - typically via the unit's USB update port - can craft or modify firmware packages to execute arbitrary code as root, allowing persistent compromise of the device's integrity and deck randomization process. Physical or on-premises access remains the most likely attack path, though network-exposed or telemetry-enabled deployments could theoretically allow remote exploitation if misconfigured. The vendor confirmed that firmware updates have been issued to correct these update-chain weaknesses and that USB update access has been disabled on affected units.
Severity
7 (High)
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-321 - Use of Hard-coded Cryptographic Key
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
Light & Wonder, Inc. / SHFL Entertainment, Inc. / Shuffle Master, Inc. Deck Mate 2 Affected: 0 , < all known versions prior to 2025-10-23 (custom)
Create a notification for this product.
Credits
Joseph Tartaro of IOActive Enrique Nissim of IOActive Ethan Shackelford of IOActive
Show details on NVD website
To clipboard 

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CVE-2025-34324 (GCVE-0-2025-34324)

Vulnerability from cvelistv5 – Published: 2025-11-18 16:33 – Updated: 2025-11-18 18:24
VLAI
Title
GoSign Desktop < 2.4.1 Insecure Update Mechanism RCE
Summary
GoSign Desktop versions 2.4.0 and earlier use an unsigned update manifest for distributing application updates. The manifest contains package URLs and SHA-256 hashes but is not digitally signed, so its authenticity relies solely on the underlying TLS channel. In affected versions, TLS certificate validation can be disabled when a proxy is configured, allowing an attacker who can intercept network traffic to supply a malicious update manifest and corresponding package with a matching hash. This can cause the client to download and install a tampered update, resulting in arbitrary code execution with the privileges of the GoSign Desktop user on Windows and macOS, or with elevated privileges on some Linux deployments. A local attacker who can modify proxy settings may also abuse this behavior to escalate privileges by forcing installation of a crafted update.
Severity
7 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
Tinexta InfoCert S.p.A. GoSign Desktop Affected: 0 , < 2.4.1 (semver)
Create a notification for this product.
Credits
Pasquale "sid" Fiorillo Francesco "ascii" Ongaro Marco Lunardi
Show details on NVD website
To clipboard 

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CVE-2025-33074 (GCVE-0-2025-33074)

Vulnerability from cvelistv5 – Published: 2025-04-30 17:14 – Updated: 2026-02-26 18:29 Exclusively Hosted Service
VLAI
Title
Azure Functions Remote Code Execution Vulnerability
Summary
Improper verification of cryptographic signature in Microsoft Azure Functions allows an authorized attacker to execute code over a network.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Date Public
2025-04-30 07:00
Show details on NVD website
To clipboard 

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CVE-2025-33069 (GCVE-0-2025-33069)

Vulnerability from cvelistv5 – Published: 2025-06-10 17:02 – Updated: 2026-02-20 16:01
VLAI
Title
Windows App Control for Business Security Feature Bypass Vulnerability
Summary
Improper verification of cryptographic signature in App Control for Business (WDAC) allows an unauthorized attacker to bypass a security feature locally.
Severity
5.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 11 Version 24H2 Affected: 10.0.26100.0 , < 10.0.26100.4349 (custom)
Create a notification for this product.
Microsoft Windows Server 2025 Affected: 10.0.26100.0 , < 10.0.26100.4349 (custom)
Create a notification for this product.
Microsoft Windows Server 2025 (Server Core installation) Affected: 10.0.26100.0 , < 10.0.26100.4349 (custom)
Create a notification for this product.
Date Public
2025-06-10 07:00
Show details on NVD website
To clipboard 

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CVE-2025-32060 (GCVE-0-2025-32060)

Vulnerability from cvelistv5 – Published: 2026-02-15 10:46 – Updated: 2026-02-17 20:07
VLAI
Title
Absence of Kernel Module Signature Verification on Linux System of Infotainment ECU
Summary
The system suffers from the absence of a kernel module signature verification. If an attacker can execute commands on behalf of root user (due to additional vulnerabilities), then he/she is also able to load custom kernel modules to the kernel space and execute code in the kernel context. Such a flaw can lead to taking control over the entire system. First identified on Nissan Leaf ZE1 manufactured in 2020.
Severity
6.7 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
Bosch Infotainment system ECU Affected: 283C30861E
Create a notification for this product.
Credits
Mikhail Evdokimov (PCA Cyber Security Assessment Team)
Show details on NVD website
To clipboard 

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CVE-2025-31489 (GCVE-0-2025-31489)

Vulnerability from cvelistv5 – Published: 2025-04-03 19:36 – Updated: 2025-04-03 20:36
VLAI
Title
MinIO performs incomplete signature validation for unsigned-trailer uploads
Summary
MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. The signature component of the authorization may be invalid, which would mean that as a client you can use any arbitrary secret to upload objects given the user already has prior WRITE permissions on the bucket. Prior knowledge of access-key, and bucket name this user might have access to - and an access-key with a WRITE permissions is necessary. However with relevant information in place, uploading random objects to buckets is trivial and easy via curl. This issue is fixed in RELEASE.2025-04-03T14-56-28Z.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
minio minio Affected: < RELEASE.2025-04-03T14-56-28Z
Create a notification for this product.
Show details on NVD website
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CVE-2025-31335 (GCVE-0-2025-31335)

Vulnerability from cvelistv5 – Published: 2025-03-28 00:00 – Updated: 2025-03-28 14:31
VLAI
Summary
The OpenSAML C++ library before 3.3.1 allows forging of signed SAML messages via parameter manipulation (when using SAML bindings that rely on non-XML signatures).
Severity
4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
Shibboleth OpenSAML C++ library Affected: 0 , < 3.3.1 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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No mitigation information available for this CWE.

CAPEC-463: Padding Oracle Crypto Attack

An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.

CAPEC-475: Signature Spoofing by Improper Validation

An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.

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