CVE-2026-89885

HIGHPre-NVD 8.48.4—
EchelonGraph scoreHIGH confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. A secondary CVSS source baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

media: platform: mtk-mdp3: Fix SCP device refcounting

mdp_probe() first tries to get the SCP handle with scp_get(). When that fails, it falls back to looking up the SCP platform device with __get_pdev_by_id() and then reads its driver data.

The fallback lookup returns the platform device with a reference, just like scp_get() does. However, the fallback path currently drops that reference immediately after platform_get_drvdata(). The driver later still calls scp_put(mdp->scp) unconditionally from the probe error path and from mdp_video_device_release(), which drops the SCP device reference again.

Keep the fallback reference until the existing scp_put() call, so that the fallback path follows the same ownership rules as the scp_get() path.

CVSS v3
8.4
EG Score
8.4HIGHhigh confidence
EG Risk
42
EG Risk 42/100CISA SSVC

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
Severity84% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
8th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 16, 2026

Last Modified

September 16, 2026

Advisory Details (4)

Auto-updated Sep 16, 2026
Patch available.
generic

media: platform: mtk-mdp3: Fix SCP device refcounting - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/55793e4665b7f15151e6f5ab51ca980e73abed5d
generic

media: platform: mtk-mdp3: Fix SCP device refcounting - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0259ade4c4ceaf1e184a7c1aea8071ad398f9b6f
generic

media: platform: mtk-mdp3: Fix SCP device refcounting - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/252850653569fdb1a259937e02325cf32c8f0970
generic

media: platform: mtk-mdp3: Fix SCP device refcounting - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dce13bd9bade3ecc1acb7579397f24743850997f

Vendor Advisories for CVE-2026-89885(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1, 6.12.107-1~deb12u1
  • every version up to 6.12.111-1~deb12u1: fixed in 6.12.111-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (35 versions)
  • every version up to 6.12.111-1: fixed in 6.12.111-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (179 versions)
  • every version up to 7.2.6-1: fixed in 7.2.6-1
—

Data Freshness Timeline

(refreshed 23× in last 7d / 76× 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.

  1. 2026-10-05 09:13 UTCEG score recompute
  2. 2026-10-05 09:13 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 20:24 UTCGHSA enrichment
  5. 2026-10-04 07:40 UTCGHSA enrichment
  6. 2026-10-03 18:56 UTCEG score recompute
  7. 2026-10-03 18:56 UTCGHSA enrichment
  8. 2026-10-03 06:12 UTCEG score recompute
  9. 2026-10-03 06:12 UTCGHSA enrichment
  10. 2026-10-02 17:27 UTCGHSA enrichment
  11. 2026-10-02 04:37 UTCEG score recompute
  12. 2026-10-02 04:37 UTCGHSA enrichment
  13. 2026-10-01 19:51 UTCEPSS rescore
  14. 2026-10-01 15:08 UTCGHSA enrichment
  15. 2026-10-01 02:24 UTCEG score recompute
  16. 2026-10-01 02:24 UTCGHSA enrichment
  17. 2026-09-30 15:04 UTCEPSS rescore
  18. 2026-09-30 13:40 UTCGHSA enrichment
  19. 2026-09-30 00:55 UTCEG score recompute
  20. 2026-09-30 00:55 UTCGHSA enrichment
  21. 2026-09-29 11:46 UTCGHSA enrichment
  22. 2026-09-28 22:58 UTCEG score recompute
  23. 2026-09-28 22:58 UTCGHSA enrichment
  24. 2026-09-28 13:52 UTCEPSS rescore
  25. 2026-09-28 13:52 UTCEPSS rescore
Show 51 more
  1. 2026-09-28 10:12 UTCGHSA enrichment
  2. 2026-09-27 21:28 UTCEG score recompute
  3. 2026-09-27 21:27 UTCGHSA enrichment
  4. 2026-09-27 13:49 UTCEPSS rescore
  5. 2026-09-27 08:42 UTCGHSA enrichment
  6. 2026-09-26 19:57 UTCEG score recompute
  7. 2026-09-26 19:57 UTCGHSA enrichment
  8. 2026-09-26 15:59 UTCEPSS rescore
  9. 2026-09-26 07:09 UTCEG score recompute
  10. 2026-09-26 07:09 UTCGHSA enrichment
  11. 2026-09-25 18:25 UTCGHSA enrichment
  12. 2026-09-25 04:45 UTCGHSA enrichment
  13. 2026-09-24 16:01 UTCEG score recompute
  14. 2026-09-24 16:01 UTCGHSA enrichment
  15. 2026-09-24 14:04 UTCEPSS rescore
  16. 2026-09-24 03:17 UTCEG score recompute
  17. 2026-09-24 03:17 UTCGHSA enrichment
  18. 2026-09-23 17:54 UTCEPSS rescore
  19. 2026-09-23 14:32 UTCGHSA enrichment
  20. 2026-09-23 01:48 UTCEG score recompute
  21. 2026-09-23 01:48 UTCGHSA enrichment
  22. 2026-09-22 16:01 UTCEPSS rescore
  23. 2026-09-22 13:03 UTCGHSA enrichment
  24. 2026-09-22 00:19 UTCEG score recompute
  25. 2026-09-22 00:19 UTCGHSA enrichment
  26. 2026-09-21 21:09 UTCEPSS rescore
  27. 2026-09-21 11:34 UTCGHSA enrichment
  28. 2026-09-20 22:50 UTCEG score recompute
  29. 2026-09-20 22:49 UTCGHSA enrichment
  30. 2026-09-20 20:16 UTCEPSS rescore
  31. 2026-09-20 10:05 UTCGHSA enrichment
  32. 2026-09-19 21:19 UTCEG score recompute
  33. 2026-09-19 21:19 UTCGHSA enrichment
  34. 2026-09-19 08:35 UTCGHSA enrichment
  35. 2026-09-18 19:49 UTCEG score recompute
  36. 2026-09-18 19:49 UTCGHSA enrichment
  37. 2026-09-18 19:28 UTCEPSS rescore
  38. 2026-09-18 07:05 UTCEG score recompute
  39. 2026-09-18 07:05 UTCGHSA enrichment
  40. 2026-09-17 19:32 UTCEPSS rescore
  41. 2026-09-17 18:20 UTCGHSA enrichment
  42. 2026-09-17 04:07 UTCEG score recompute
  43. 2026-09-17 04:07 UTCGHSA enrichment
  44. 2026-09-16 15:19 UTCEG score recompute
  45. 2026-09-16 15:19 UTCGHSA enrichment
  46. 2026-09-16 14:48 UTCEG score recompute▲ 8.40
  47. 2026-09-16 14:48 UTCGHSA enrichment
  48. 2026-09-16 14:45 UTCMITRE cvelistV5CVSS v3 → 8.4 · severity → HIGH
  49. 2026-09-16 11:21 UTCNVD update
  50. 2026-09-16 10:39 UTCEG score recompute
  51. 2026-09-16 10:36 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-89885?
CVE-2026-89885 is a high vulnerability published on September 16, 2026. In the Linux kernel, the following vulnerability has been resolved: media: platform: mtk-mdp3: Fix SCP device refcounting mdpprobe() first tries to get the SCP handle with scpget(). When that fails, it falls back to looking up the SCP platform device with getpdevby_id() and then reads its driver…
When was CVE-2026-89885 disclosed?
CVE-2026-89885 was first published on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-89885 actively exploited?
CVE-2026-89885 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-89885?
CVE-2026-89885 has a CVSS base score of 8.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-89885?
A fix for CVE-2026-89885 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-89885 are linked in the Vendor Advisories panel on this page.

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