CVE-2026-53135

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs

[Why & How] dp_sdp_message_debugfs_write() dereferences connector->base.state->crtc without checking for NULL. A connector can be connected but not bound to any CRTC (e.g. after hot-plug before the next atomic commit), causing a kernel crash when writing to the sdp_message debugfs node.

The function also ignores the user-provided size argument and always passes 36 bytes to copy_from_user(), reading past the user buffer when size < 36.

Fix both issues by:

  • Returning -ENODEV when connector->base.state or state->crtc is NULL
  • Clamping write_size to min(size, sizeof(data))

(cherry picked from commit 6ab4c36a522842ff70474a1c0af2e40e50fc8300)

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 7, 2026

Advisory Details (8)

Auto-updated Jul 7, 2026
No patch confirmed yet.
generic

drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ee9cfcf77a8e8af637396dc00966df5f701e661c
generic

drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c90954cdea4d6998ec345de0d840d030c145b89e
generic

drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bb6f705b73b5f191f14ad004e2c8c4b615806187
generic

drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b781f90a9528555c709e59789550893581ef0be4
generic

drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/adf67034b1f61f7119295208085bfd43f85f56af
generic

drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a2de1d71891a038a9346b2c1a72b88c8350f2479
generic

drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7fc4fab4acc307ad2903312c195872b2953d32c3
generic

drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7ae95c0275c330b5dbae806f8e431720edad776f

Vendor Advisories for CVE-2026-53135(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (145 versions)7.0.13-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 5× in last 7d / 62× 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 199 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53135?
CVE-2026-53135 is a medium vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs [Why & How] dpsdpmessagedebugfswrite() dereferences connector->base.state->crtc without checking for NULL. A connector can be connected but not bound to any CRTC…
When was CVE-2026-53135 disclosed?
CVE-2026-53135 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53135 actively exploited?
CVE-2026-53135 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 94.2% of all scored CVEs.
What is the CVSS score of CVE-2026-53135?
CVE-2026-53135 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53135?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53135, 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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