Vulnerability-Lookup

CVE-2025-40277 (GCVE-0-2025-40277)

Vulnerability from cvelistv5 – Published: 2025-12-06 21:51 – Updated: 2026-08-05 12:09

Title

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-16 19:51 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/e58559845021c3bad…
https://git.kernel.org/stable/c/54d458b244893e47b…
https://git.kernel.org/stable/c/709e5c088f9c99a5c…
https://git.kernel.org/stable/c/a3abb54c27b2c393c…
https://git.kernel.org/stable/c/b5df9e06eed3df6a4…
https://git.kernel.org/stable/c/5aea2cde03d4247cd…
https://git.kernel.org/stable/c/f3f3a8eb3f0ba799f…
https://git.kernel.org/stable/c/32b415a9dc2c212e8…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 8ce75f8ab9044fe11caaaf2b2c82471023212f9f , < e58559845021c3bad5e094219378b869157fad53 (git) Affected: 8ce75f8ab9044fe11caaaf2b2c82471023212f9f , < 54d458b244893e47bda52ec3943fdfbc8d7d068b (git) Affected: 8ce75f8ab9044fe11caaaf2b2c82471023212f9f , < 709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173 (git) Affected: 8ce75f8ab9044fe11caaaf2b2c82471023212f9f , < a3abb54c27b2c393c44362399777ad2f6e1ff17e (git) Affected: 8ce75f8ab9044fe11caaaf2b2c82471023212f9f , < b5df9e06eed3df6a4f5c6f8453013b0cabb927b4 (git) Affected: 8ce75f8ab9044fe11caaaf2b2c82471023212f9f , < 5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc (git) Affected: 8ce75f8ab9044fe11caaaf2b2c82471023212f9f , < f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0 (git) Affected: 8ce75f8ab9044fe11caaaf2b2c82471023212f9f , < 32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af (git)	guessed
Linux	Linux	Affected: 4.3 Unaffected: 0 , < 4.3 (semver) Unaffected: 5.4.302 , ≤ 5.4.* (semver) Unaffected: 5.10.247 , ≤ 5.10.* (semver) Unaffected: 5.15.197 , ≤ 5.15.* (semver) Unaffected: 6.1.159 , ≤ 6.1.* (semver) Unaffected: 6.6.117 , ≤ 6.6.* (semver) Unaffected: 6.12.59 , ≤ 6.12.* (semver) Unaffected: 6.17.9 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)	guessed

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                "id": "CVE-2025-40277",
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              "value": "AV:L - The bug is reached only through the DRM_IOCTL_VMW_EXECBUF ioctl on the local vmwgfx device/render node (/dev/dri/renderD*), requiring local system access. There is no network or remote path into the command verifier.\nAC:L - The attacker fully and deterministically controls header-\u003esize in the command stream they submit; setting it to 0xFFFFFFF8..0xFFFFFFFF reliably wraps the 32-bit size computation and bypasses the size_remaining check every time. No race, timing window, or uncontrollable precondition is involved.\nPR:L - VMW_EXECBUF is declared DRM_RENDER_ALLOW and vmwgfx sets DRIVER_RENDER, so no DRM master or authentication is needed \u2014 any unprivileged local user with access to the render node (standard for graphics/desktop users and containers in VMware guests) can submit commands.\nUI:N - The attacker triggers the flaw entirely on their own by issuing the execbuf ioctl with a crafted SVGA3D command header. No victim action or interaction is required.\nS:U - The integer overflow and the resulting out-of-bounds accesses occur within the guest kernel\u0027s own address space and are confined to the kernel\u0027s security authority. No hypervisor, IOMMU, or sandbox boundary is crossed by the kernel-side defect itself.\nC:H - The unchecked header-\u003esize drives pointer arithmetic in vmw_cmd_dma(), vmw_cmd_draw(), and vmw_cmd_tex_state(), producing large out-of-bounds reads of adjacent kernel memory whose contents are interpreted as resource handles; success/failure of vmw_user_resource_lookup_handle() forms a scanning oracle over kernel heap contents, so arbitrary kernel memory disclosure is achievable.\nI:H - The same overflow yields out-of-bounds writes \u2014 vmw_cmd_dma() writes bo_size into suffix-\u003emaximumOffset past the buffer, and OOB-derived relocation offsets cause vmw_resource_relocations_apply() to write 32-bit resource IDs outside the command buffer. Controlled heap corruption of this kind is a standard path to privilege escalation.\nA:H - A header-\u003esize of 0xFFFFFFF8 makes *size zero, causing vmw_cmd_check_all() to spin forever while holding dev_priv-\u003ecmdbuf_mutex, and the far out-of-bounds reads past a vmalloc\u0027d bounce buffer hit a guard page and oops the kernel. Either outcome is a full denial of service."
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    "redhat_vex": {
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      "initial_release_date": "2025-12-06T00:00:00+00:00",
      "product_status:fixed": "2311",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40277.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-40277\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-16T19:51:12.603019Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-16T19:51:20.601Z\"}}], \"cna\": {\"title\": \"drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"8ce75f8ab9044fe11caaaf2b2c82471023212f9f\", \"lessThan\": \"e58559845021c3bad5e094219378b869157fad53\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8ce75f8ab9044fe11caaaf2b2c82471023212f9f\", \"lessThan\": \"54d458b244893e47bda52ec3943fdfbc8d7d068b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8ce75f8ab9044fe11caaaf2b2c82471023212f9f\", \"lessThan\": \"709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8ce75f8ab9044fe11caaaf2b2c82471023212f9f\", \"lessThan\": \"a3abb54c27b2c393c44362399777ad2f6e1ff17e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8ce75f8ab9044fe11caaaf2b2c82471023212f9f\", \"lessThan\": \"b5df9e06eed3df6a4f5c6f8453013b0cabb927b4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8ce75f8ab9044fe11caaaf2b2c82471023212f9f\", \"lessThan\": \"5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8ce75f8ab9044fe11caaaf2b2c82471023212f9f\", \"lessThan\": \"f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8ce75f8ab9044fe11caaaf2b2c82471023212f9f\", \"lessThan\": \"32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.3\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.3\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.302\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.247\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.197\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.159\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.117\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.59\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.17.9\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.17.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/e58559845021c3bad5e094219378b869157fad53\"}, {\"url\": \"https://git.kernel.org/stable/c/54d458b244893e47bda52ec3943fdfbc8d7d068b\"}, {\"url\": \"https://git.kernel.org/stable/c/709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173\"}, {\"url\": \"https://git.kernel.org/stable/c/a3abb54c27b2c393c44362399777ad2f6e1ff17e\"}, {\"url\": \"https://git.kernel.org/stable/c/b5df9e06eed3df6a4f5c6f8453013b0cabb927b4\"}, {\"url\": \"https://git.kernel.org/stable/c/5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc\"}, {\"url\": \"https://git.kernel.org/stable/c/f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0\"}, {\"url\": \"https://git.kernel.org/stable/c/32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE\\n\\nThis data originates from userspace and is used in buffer offset\\ncalculations which could potentially overflow causing an out-of-bounds\\naccess.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.302\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.247\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.197\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.159\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.117\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.59\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.17.9\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18\", \"versionStartIncluding\": \"4.3\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T21:46:14.324Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-40277\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-16T19:51:24.946Z\", \"dateReserved\": \"2025-04-16T07:20:57.184Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-12-06T21:51:00.437Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2025-40277

Vulnerability from fkie_nvd - Published: 2025-12-06 22:15 - Updated: 2026-07-30 06:24

Severity

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

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/54d458b244893e47bda52ec3943fdfbc8d7d068b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a3abb54c27b2c393c44362399777ad2f6e1ff17e
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b5df9e06eed3df6a4f5c6f8453013b0cabb927b4
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e58559845021c3bad5e094219378b869157fad53
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e58559845021c3bad5e094219378b869157fad53",
              "status": "affected",
              "version": "8ce75f8ab9044fe11caaaf2b2c82471023212f9f",
              "versionType": "git"
            },
            {
              "lessThan": "54d458b244893e47bda52ec3943fdfbc8d7d068b",
              "status": "affected",
              "version": "8ce75f8ab9044fe11caaaf2b2c82471023212f9f",
              "versionType": "git"
            },
            {
              "lessThan": "709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173",
              "status": "affected",
              "version": "8ce75f8ab9044fe11caaaf2b2c82471023212f9f",
              "versionType": "git"
            },
            {
              "lessThan": "a3abb54c27b2c393c44362399777ad2f6e1ff17e",
              "status": "affected",
              "version": "8ce75f8ab9044fe11caaaf2b2c82471023212f9f",
              "versionType": "git"
            },
            {
              "lessThan": "b5df9e06eed3df6a4f5c6f8453013b0cabb927b4",
              "status": "affected",
              "version": "8ce75f8ab9044fe11caaaf2b2c82471023212f9f",
              "versionType": "git"
            },
            {
              "lessThan": "5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc",
              "status": "affected",
              "version": "8ce75f8ab9044fe11caaaf2b2c82471023212f9f",
              "versionType": "git"
            },
            {
              "lessThan": "f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0",
              "status": "affected",
              "version": "8ce75f8ab9044fe11caaaf2b2c82471023212f9f",
              "versionType": "git"
            },
            {
              "lessThan": "32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af",
              "status": "affected",
              "version": "8ce75f8ab9044fe11caaaf2b2c82471023212f9f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.3"
            },
            {
              "lessThan": "4.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.302",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.117",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.59",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE\n\nThis data originates from userspace and is used in buffer offset\ncalculations which could potentially overflow causing an out-of-bounds\naccess."
    }
  ],
  "id": "CVE-2025-40277",
  "lastModified": "2026-07-30T06:24:25.607",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-40277",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-16T19:51:12.603019Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-06T22:15:55.560",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/54d458b244893e47bda52ec3943fdfbc8d7d068b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a3abb54c27b2c393c44362399777ad2f6e1ff17e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b5df9e06eed3df6a4f5c6f8453013b0cabb927b4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e58559845021c3bad5e094219378b869157fad53"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}

GHSA-6JJC-G279-FQ4C

Vulnerability from github – Published: 2025-12-07 00:30 – Updated: 2026-07-30 06:32

Details

In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.

Severity

7.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-40277"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-06T22:15:55Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE\n\nThis data originates from userspace and is used in buffer offset\ncalculations which could potentially overflow causing an out-of-bounds\naccess.",
  "id": "GHSA-6jjc-g279-fq4c",
  "modified": "2026-07-30T06:32:19Z",
  "published": "2025-12-07T00:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40277"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54d458b244893e47bda52ec3943fdfbc8d7d068b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3abb54c27b2c393c44362399777ad2f6e1ff17e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5df9e06eed3df6a4f5c6f8453013b0cabb927b4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e58559845021c3bad5e094219378b869157fad53"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

MSRC_CVE-2025-40277

Vulnerability from csaf_microsoft - Published: 2025-12-02 00:00 - Updated: 2025-12-16 14:38

Summary

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

Scope

1 vulnerability in this advisory, including CVE-2025-40277.

CVE-2025-40277

Fixed: 1 product Known affected: 1 product

https://learn.microsoft.com/en-us/azure/azure-linux/tutoria…

Open the full advisory

OPENSUSE-SU-2026:20145-1

Vulnerability from csaf_opensuse - Published: 2026-02-02 11:54 - Updated: 2026-02-02 11:54

Summary

Security update for the Linux Kernel

Severity

Important

Scope

215 vulnerabilities in this advisory, including CVE-2025-40277.

CVE-2025-40277

5.5 (Medium)


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

Recommended: 136 products

Open the full advisory

RHSA-2026:0453

Vulnerability from csaf_redhat - Published: 2026-01-12 09:30 - Updated: 2026-08-21 20:08

Summary

Red Hat Security Advisory: kernel security update

Severity

Important

Scope

9 vulnerabilities in this advisory, including CVE-2025-40277.

CVE-2025-40277

7.8 (High)


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

Fixed: 309 products

https://access.redhat.com/errata/RHSA-2026:0453

Open the full advisory

RHSA-2026:0793

Vulnerability from csaf_redhat - Published: 2026-01-19 12:08 - Updated: 2026-08-21 20:08

Summary

Red Hat Security Advisory: kernel security update

Severity

Important

Scope

5 vulnerabilities in this advisory, including CVE-2025-40277.

CVE-2025-40277

7.8 (High)


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

Fixed: 303 products

https://access.redhat.com/errata/RHSA-2026:0793

Open the full advisory

RHSA-2026:0917

Vulnerability from csaf_redhat - Published: 2026-01-21 10:12 - Updated: 2026-07-30 09:28

Summary

Red Hat Security Advisory: kernel security update

Severity

Moderate

Scope

5 vulnerabilities in this advisory, including CVE-2025-40277.

CVE-2025-40277

7.8 (High)


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

Fixed: 279 products

https://access.redhat.com/errata/RHSA-2026:0917

Open the full advisory

RHSA-2026:1142

Vulnerability from csaf_redhat - Published: 2026-01-26 13:44 - Updated: 2026-08-04 19:15

Summary

Red Hat Security Advisory: kernel security update

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2025-40277.

CVE-2025-40277

7.8 (High)


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

Fixed: 120 products

https://access.redhat.com/errata/RHSA-2026:1142

Open the full advisory

RHSA-2026:1148

Vulnerability from csaf_redhat - Published: 2026-01-26 07:50 - Updated: 2026-08-04 19:15

Summary

Red Hat Security Advisory: kernel-rt security update

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2025-40277.

CVE-2025-40277

7.8 (High)


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

Fixed: 30 products

https://access.redhat.com/errata/RHSA-2026:1148

Open the full advisory

RHSA-2026:1194

Vulnerability from csaf_redhat - Published: 2026-01-26 14:32 - Updated: 2026-08-04 14:07

Summary

Red Hat Security Advisory: kernel security update

Severity

Moderate

Scope

11 vulnerabilities in this advisory, including CVE-2025-40277.

CVE-2025-40277

7.8 (High)


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

Fixed: 305 products

https://access.redhat.com/errata/RHSA-2026:1194

Open the full advisory

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2025-40277 (GCVE-0-2025-40277)

Tags

Sightings

Nomenclature