Vulnerability-Lookup

FKIE_CVE-2021-47631

Vulnerability from fkie_nvd - Published: 2025-02-26 06:37 - Updated: 2026-06-17 04:18

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: ARM: davinci: da850-evm: Avoid NULL pointer dereference With newer versions of GCC, there is a panic in da850_evm_config_emac() when booting multi_v5_defconfig in QEMU under the palmetto-bmc machine: Unable to handle kernel NULL pointer dereference at virtual address 00000020 pgd = (ptrval) [00000020] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 5.15.0 #1 Hardware name: Generic DT based system PC is at da850_evm_config_emac+0x1c/0x120 LR is at do_one_initcall+0x50/0x1e0 The emac_pdata pointer in soc_info is NULL because davinci_soc_info only gets populated on davinci machines but da850_evm_config_emac() is called on all machines via device_initcall(). Move the rmii_en assignment below the machine check so that it is only dereferenced when running on a supported SoC.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0940795c6834fbe7705acc5c3d4b2f7a5f67527a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0a312ec66a03133d28570f07bc52749ccfef54da	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/83a1cde5c74bfb44b49cb2a940d044bb2380f4ea	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/89931d4762572aaee6edbe5673d41f8082de110f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a12b356d45cbb6e8a1b718d1436b3d6239a862f3	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c06f476e5b74bcabb8c4a2fba55864a37e62843b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c5628533a3ece64235d04fe11ec44d2be99e423d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c64e2ed5cc376e137e572babfd2edc38b2cfb61b	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	5.18
linux	linux_kernel	5.18

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm/mach-davinci/board-da850-evm.c"
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          "vendor": "Linux",
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
            {
              "status": "affected",
              "version": "2.6.33"
            },
            {
              "lessThan": "2.6.33",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "4.9.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.239",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nARM: davinci: da850-evm: Avoid NULL pointer dereference\n\nWith newer versions of GCC, there is a panic in da850_evm_config_emac()\nwhen booting multi_v5_defconfig in QEMU under the palmetto-bmc machine:\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000020\npgd = (ptrval)\n[00000020] *pgd=00000000\nInternal error: Oops: 5 [#1] PREEMPT ARM\nModules linked in:\nCPU: 0 PID: 1 Comm: swapper Not tainted 5.15.0 #1\nHardware name: Generic DT based system\nPC is at da850_evm_config_emac+0x1c/0x120\nLR is at do_one_initcall+0x50/0x1e0\n\nThe emac_pdata pointer in soc_info is NULL because davinci_soc_info only\ngets populated on davinci machines but da850_evm_config_emac() is called\non all machines via device_initcall().\n\nMove the rmii_en assignment below the machine check so that it is only\ndereferenced when running on a supported SoC."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ARM: davinci: da850-evm: Evitar la desreferencia de puntero NULL Con versiones m\u00e1s nuevas de GCC, hay un p\u00e1nico en da850_evm_config_emac() al iniciar multi_v5_defconfig en QEMU bajo la m\u00e1quina palmetto-bmc: No se puede manejar la desreferencia de puntero NULL del kernel en la direcci\u00f3n virtual 00000020 pgd = (ptrval) [00000020] *pgd=00000000 Error interno: Oops: 5 [#1] PREEMPT M\u00f3dulos ARM vinculados: CPU: 0 PID: 1 Comm: swapper No contaminado 5.15.0 #1 Nombre del hardware: Sistema gen\u00e9rico basado en DT La PC est\u00e1 en da850_evm_config_emac+0x1c/0x120 LR est\u00e1 en El puntero emac_pdata en soc_info es NULL porque davinci_soc_info solo se completa en m\u00e1quinas davinci, pero se llama a da850_evm_config_emac() en todas las m\u00e1quinas a trav\u00e9s de device_initcall(). Mueva la asignaci\u00f3n rmii_en debajo de la verificaci\u00f3n de la m\u00e1quina para que solo se desreferencia cuando se ejecuta en un SoC compatible."
    }
  ],
  "id": "CVE-2021-47631",
  "lastModified": "2026-06-17T04:18:11.560",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-47631",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-01T19:51:01.274417Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-02-26T06:37:04.400",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/0940795c6834fbe7705acc5c3d4b2f7a5f67527a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/0a312ec66a03133d28570f07bc52749ccfef54da"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
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      "source": "nvd@nist.gov",
      "type": "Primary"
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          "value": "CWE-476"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

CVE-2021-47631 (GCVE-0-2021-47631)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:54 – Updated: 2026-05-11 13:58

Title

ARM: davinci: da850-evm: Avoid NULL pointer dereference

Summary

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:51 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6641 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/c06f476e5b74bcabb…
https://git.kernel.org/stable/c/a12b356d45cbb6e8a…
https://git.kernel.org/stable/c/c64e2ed5cc376e137…
https://git.kernel.org/stable/c/89931d4762572aaee…
https://git.kernel.org/stable/c/0a312ec66a03133d2…
https://git.kernel.org/stable/c/0940795c6834fbe77…
https://git.kernel.org/stable/c/c5628533a3ece6423…
https://git.kernel.org/stable/c/83a1cde5c74bfb44b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: bae105879f2f2404155da6f50b3636193d228a62 , < c06f476e5b74bcabb8c4a2fba55864a37e62843b (git) Affected: bae105879f2f2404155da6f50b3636193d228a62 , < a12b356d45cbb6e8a1b718d1436b3d6239a862f3 (git) Affected: bae105879f2f2404155da6f50b3636193d228a62 , < c64e2ed5cc376e137e572babfd2edc38b2cfb61b (git) Affected: bae105879f2f2404155da6f50b3636193d228a62 , < 89931d4762572aaee6edbe5673d41f8082de110f (git) Affected: bae105879f2f2404155da6f50b3636193d228a62 , < 0a312ec66a03133d28570f07bc52749ccfef54da (git) Affected: bae105879f2f2404155da6f50b3636193d228a62 , < 0940795c6834fbe7705acc5c3d4b2f7a5f67527a (git) Affected: bae105879f2f2404155da6f50b3636193d228a62 , < c5628533a3ece64235d04fe11ec44d2be99e423d (git) Affected: bae105879f2f2404155da6f50b3636193d228a62 , < 83a1cde5c74bfb44b49cb2a940d044bb2380f4ea (git)
Linux	Linux	Affected: 2.6.33 Unaffected: 0 , < 2.6.33 (semver) Unaffected: 4.9.311 , ≤ 4.9.* (semver) Unaffected: 4.14.276 , ≤ 4.14.* (semver) Unaffected: 4.19.239 , ≤ 4.19.* (semver) Unaffected: 5.4.190 , ≤ 5.4.* (semver) Unaffected: 5.10.112 , ≤ 5.10.* (semver) Unaffected: 5.15.35 , ≤ 5.15.* (semver) Unaffected: 5.17.4 , ≤ 5.17.* (semver) Unaffected: 5.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-47631",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:51:01.274417Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:57:09.062Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm/mach-davinci/board-da850-evm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c06f476e5b74bcabb8c4a2fba55864a37e62843b",
              "status": "affected",
              "version": "bae105879f2f2404155da6f50b3636193d228a62",
              "versionType": "git"
            },
            {
              "lessThan": "a12b356d45cbb6e8a1b718d1436b3d6239a862f3",
              "status": "affected",
              "version": "bae105879f2f2404155da6f50b3636193d228a62",
              "versionType": "git"
            },
            {
              "lessThan": "c64e2ed5cc376e137e572babfd2edc38b2cfb61b",
              "status": "affected",
              "version": "bae105879f2f2404155da6f50b3636193d228a62",
              "versionType": "git"
            },
            {
              "lessThan": "89931d4762572aaee6edbe5673d41f8082de110f",
              "status": "affected",
              "version": "bae105879f2f2404155da6f50b3636193d228a62",
              "versionType": "git"
            },
            {
              "lessThan": "0a312ec66a03133d28570f07bc52749ccfef54da",
              "status": "affected",
              "version": "bae105879f2f2404155da6f50b3636193d228a62",
              "versionType": "git"
            },
            {
              "lessThan": "0940795c6834fbe7705acc5c3d4b2f7a5f67527a",
              "status": "affected",
              "version": "bae105879f2f2404155da6f50b3636193d228a62",
              "versionType": "git"
            },
            {
              "lessThan": "c5628533a3ece64235d04fe11ec44d2be99e423d",
              "status": "affected",
              "version": "bae105879f2f2404155da6f50b3636193d228a62",
              "versionType": "git"
            },
            {
              "lessThan": "83a1cde5c74bfb44b49cb2a940d044bb2380f4ea",
              "status": "affected",
              "version": "bae105879f2f2404155da6f50b3636193d228a62",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/arm/mach-davinci/board-da850-evm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.33"
            },
            {
              "lessThan": "2.6.33",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.239",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.311",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.276",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.239",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.190",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.112",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.35",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.4",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nARM: davinci: da850-evm: Avoid NULL pointer dereference\n\nWith newer versions of GCC, there is a panic in da850_evm_config_emac()\nwhen booting multi_v5_defconfig in QEMU under the palmetto-bmc machine:\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000020\npgd = (ptrval)\n[00000020] *pgd=00000000\nInternal error: Oops: 5 [#1] PREEMPT ARM\nModules linked in:\nCPU: 0 PID: 1 Comm: swapper Not tainted 5.15.0 #1\nHardware name: Generic DT based system\nPC is at da850_evm_config_emac+0x1c/0x120\nLR is at do_one_initcall+0x50/0x1e0\n\nThe emac_pdata pointer in soc_info is NULL because davinci_soc_info only\ngets populated on davinci machines but da850_evm_config_emac() is called\non all machines via device_initcall().\n\nMove the rmii_en assignment below the machine check so that it is only\ndereferenced when running on a supported SoC."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T13:58:07.851Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c06f476e5b74bcabb8c4a2fba55864a37e62843b"
        },
        {
          "url": "https://git.kernel.org/stable/c/a12b356d45cbb6e8a1b718d1436b3d6239a862f3"
        },
        {
          "url": "https://git.kernel.org/stable/c/c64e2ed5cc376e137e572babfd2edc38b2cfb61b"
        },
        {
          "url": "https://git.kernel.org/stable/c/89931d4762572aaee6edbe5673d41f8082de110f"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a312ec66a03133d28570f07bc52749ccfef54da"
        },
        {
          "url": "https://git.kernel.org/stable/c/0940795c6834fbe7705acc5c3d4b2f7a5f67527a"
        },
        {
          "url": "https://git.kernel.org/stable/c/c5628533a3ece64235d04fe11ec44d2be99e423d"
        },
        {
          "url": "https://git.kernel.org/stable/c/83a1cde5c74bfb44b49cb2a940d044bb2380f4ea"
        }
      ],
      "title": "ARM: davinci: da850-evm: Avoid NULL pointer dereference",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47631",
    "datePublished": "2025-02-26T01:54:07.513Z",
    "dateReserved": "2025-02-26T01:48:21.518Z",
    "dateUpdated": "2026-05-11T13:58:07.851Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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