CVE-2025-40277

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 75% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:linux, epss
Trending — 6 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

December 6, 2025

Last Modified

July 30, 2026

Advisory Details (8)

Auto-updated Jul 30, 2026
No patch confirmed yet.
generic

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0
generic

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e58559845021c3bad5e094219378b869157fad53
generic

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b5df9e06eed3df6a4f5c6f8453013b0cabb927b4
generic

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a3abb54c27b2c393c44362399777ad2f6e1ff17e
generic

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173
generic

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc
generic

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/54d458b244893e47bda52ec3943fdfbc8d7d068b
generic

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af

Patch Availability(31)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-gcp-fips-5.15 (5.15.0.1103.93) @ jammy2026-07-30ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1052.55+fips1) @ noble2026-07-30ubuntu
ubuntulinux-virtual-6.8 (6.8.0-106.106) @ noble2026-07-30ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1007.7) @ questing2026-07-30ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-14.14) @ questing2026-07-30ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1067 (5.15.0-1067.71) @ jammy2026-07-30ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1045.46) @ noble2026-07-30ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1011.11) @ noble2026-07-30ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1008.8) @ questing2026-07-30ubuntu
ubuntulinux-tools-gcp-64k-6.17 (6.17.0-1007.7) @ questing2026-07-30ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.173.183~20.04.1) @ focal2026-07-30ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1049.52.1) @ noble2026-07-30ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1050.53~22.04.1) @ jammy2026-07-30ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1051.57) @ noble2026-07-30ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1094.98) @ jammy2026-07-30ubuntu
redhatkernel-0:4.18.0-305.184.1.el8_42026-02-04redhat
redhatkernel-rt-0:5.14.0-284.154.1.rt14.439.el9_22026-01-28redhat
redhatkernel-0:4.18.0-193.183.1.el8_22026-01-28redhat
redhatkernel-0:4.18.0-372.177.1.el8_62026-01-28redhat
redhatkernel-0:4.18.0-477.126.1.el8_82026-01-28redhat
redhatkernel-rt-0:5.14.0-70.163.1.rt21.235.el9_02026-01-28redhat
redhatkernel-0:5.14.0-70.163.1.el9_02026-01-28redhat
redhatkernel-0:5.14.0-284.154.1.el9_22026-01-28redhat
redhatkernel-0:6.12.0-55.55.1.el10_02026-01-26redhat
redhatkernel-rt-0:4.18.0-553.97.1.rt7.438.el8_102026-01-26redhat
redhatkernel-0:4.18.0-553.97.1.el8_102026-01-26redhat
redhatkernel-0:5.14.0-570.81.1.el9_62026-01-26redhat
redhatkernel-0:5.14.0-427.107.1.el9_42026-01-21redhat
redhatkernel-0:5.14.0-611.24.1.el9_72026-01-19redhat
redhatkernel-0:6.12.0-124.27.1.el10_12026-01-12redhat
linuxKernel @ 5.4.302osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Additional Vendor Advisories

(12)

Data Freshness Timeline

(refreshed 12× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 132 total refreshes for this CVE.

  1. 2026-08-01 04:15 UTCEPSS rescore
  2. 2026-07-30 16:27 UTCEPSS rescore
  3. 2026-07-30 06:25 UTCEG score recompute 7.80
  4. 2026-07-30 06:25 UTCVendor advisory
  5. 2026-07-30 06:25 UTCGHSA enrichment
  6. 2026-07-30 06:18 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  7. 2026-07-30 01:29 UTCEPSS rescore
  8. 2026-07-28 15:35 UTCEPSS rescore
  9. 2026-07-27 06:09 UTCOSV refresh
  10. 2026-07-26 14:54 UTCEPSS rescore
  11. 2026-07-25 14:17 UTCEPSS rescore
  12. 2026-07-25 14:17 UTCEPSS rescore
  13. 2026-07-24 14:17 UTCEPSS rescore
  14. 2026-07-23 02:55 UTCEG score recompute
  15. 2026-07-22 14:07 UTCEPSS rescore
  16. 2026-07-22 14:07 UTCEPSS rescore
  17. 2026-07-21 15:24 UTCEPSS rescore
  18. 2026-07-20 17:07 UTCEPSS rescore
  19. 2026-07-19 02:28 UTCEPSS rescore
  20. 2026-07-19 02:28 UTCEPSS rescore
  21. 2026-07-18 10:04 UTCEPSS rescore
  22. 2026-07-18 10:04 UTCEPSS rescore
  23. 2026-07-16 17:02 UTCEPSS rescore
  24. 2026-07-15 16:57 UTCEPSS rescore
  25. 2026-07-15 16:57 UTCEPSS rescore
Show 75 more
  1. 2026-07-15 01:59 UTCEPSS rescore
  2. 2026-07-15 01:59 UTCEPSS rescore
  3. 2026-07-13 22:29 UTCEPSS rescore
  4. 2026-07-13 22:29 UTCEPSS rescore
  5. 2026-07-13 06:12 UTCEPSS rescore
  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-11 08:27 UTCEPSS rescore
  8. 2026-07-11 08:27 UTCEPSS rescore
  9. 2026-07-10 00:45 UTCOSV refresh
  10. 2026-07-09 19:09 UTCEPSS rescore
  11. 2026-07-09 19:09 UTCEPSS rescore
  12. 2026-07-07 13:45 UTCEPSS rescore
  13. 2026-07-06 16:27 UTCEPSS rescore
  14. 2026-07-06 16:27 UTCEPSS rescore
  15. 2026-07-06 02:23 UTCEPSS rescore
  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 06:30 UTCEPSS rescore
  18. 2026-07-01 15:06 UTCEPSS rescore
  19. 2026-07-01 15:06 UTCEPSS rescore
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 23:22 UTCEPSS rescore
  22. 2026-06-29 14:06 UTCEPSS rescore
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-28 14:07 UTCEPSS rescore
  25. 2026-06-28 14:07 UTCEPSS rescore
  26. 2026-06-28 04:55 UTCEPSS rescore
  27. 2026-06-28 04:55 UTCEPSS rescore
  28. 2026-06-27 03:08 UTCEPSS rescore
  29. 2026-06-27 03:08 UTCEPSS rescore
  30. 2026-06-25 13:49 UTCEPSS rescore
  31. 2026-06-25 13:49 UTCEPSS rescore
  32. 2026-06-24 14:04 UTCEPSS rescore
  33. 2026-06-24 14:04 UTCEPSS rescore
  34. 2026-06-23 21:32 UTCEPSS rescore
  35. 2026-06-23 21:32 UTCEPSS rescore
  36. 2026-06-22 14:25 UTCEPSS rescore
  37. 2026-06-22 14:25 UTCEPSS rescore
  38. 2026-06-21 22:58 UTCMITRE cvelistV5
  39. 2026-06-21 14:56 UTCEPSS rescore
  40. 2026-06-21 14:56 UTCEPSS rescore
  41. 2026-06-21 11:01 UTCOSV refresh
  42. 2026-06-21 01:59 UTCEPSS rescore
  43. 2026-06-21 01:59 UTCEPSS rescore
  44. 2026-06-19 19:25 UTCEPSS rescore
  45. 2026-06-19 19:25 UTCEPSS rescore
  46. 2026-06-18 17:52 UTCEPSS rescore
  47. 2026-06-18 17:52 UTCEPSS rescore
  48. 2026-06-17 17:52 UTCEPSS rescore
  49. 2026-06-16 17:52 UTCEPSS rescore
  50. 2026-06-16 17:52 UTCEPSS rescore
  51. 2026-06-14 23:17 UTCEPSS rescore
  52. 2026-06-13 23:00 UTCEPSS rescore
  53. 2026-06-12 23:11 UTCEPSS rescore
  54. 2026-06-11 14:00 UTCEPSS rescore
  55. 2026-06-10 22:18 UTCEPSS rescore
  56. 2026-06-10 13:22 UTCEPSS rescore
  57. 2026-06-08 14:16 UTCEPSS rescore
  58. 2026-06-08 14:16 UTCEPSS rescore
  59. 2026-06-07 15:24 UTCEPSS rescore
  60. 2026-06-06 13:47 UTCEPSS rescore
  61. 2026-06-06 13:47 UTCEPSS rescore
  62. 2026-06-05 22:46 UTCEPSS rescore
  63. 2026-06-05 22:46 UTCEPSS rescore
  64. 2026-06-04 13:12 UTCEPSS rescore
  65. 2026-06-04 13:12 UTCEPSS rescore
  66. 2026-06-02 20:12 UTCEPSS rescore
  67. 2026-06-02 03:09 UTCOSV refresh
  68. 2026-06-01 13:51 UTCEPSS rescore
  69. 2026-06-01 13:51 UTCEPSS rescore
  70. 2026-05-31 22:30 UTCEPSS rescore
  71. 2026-05-31 22:30 UTCEPSS rescore
  72. 2026-05-31 00:16 UTCEPSS rescore
  73. 2026-05-29 13:44 UTCEPSS rescore
  74. 2026-05-28 13:44 UTCEPSS rescore
  75. 2026-05-28 13:44 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-40277?
CVE-2025-40277 is a high vulnerability published on December 6, 2025. In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate command header size against SVGACMDMAX_DATASIZE This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.
When was CVE-2025-40277 disclosed?
CVE-2025-40277 was first published in the National Vulnerability Database on December 6, 2025, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-40277 actively exploited?
CVE-2025-40277 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 88.6% of all scored CVEs.
What is the CVSS score of CVE-2025-40277?
CVE-2025-40277 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2025-40277?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-40277, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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