CVE-2026-89870

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

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

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

media: zoran: Avoid freeing a registered video_device twice

zoran_init_video_device() installs zoran_vdev_release() as the video_device release callback through zoran_template. After video_register_device() succeeds, video_unregister_device() drops the registered video_device reference and the V4L2 core eventually invokes that release callback, which kfree()s the video_device.

zoran_exit_video_devices() called video_unregister_device() and then kfree(zr->video_dev), so device teardown could free the same video_device twice.

Remove the direct kfree() and clear the cached pointer after unregistering. The pre-registration failure path keeps its manual free because the video_device was not registered there.

This issue was found by a static analysis checker and confirmed by manual source review.

CVSS v3
7.8
EG Score
7.8HIGHhigh confidence
EG Risk
40
EG Risk 40/100CISA 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

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

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

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 (6)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

media: zoran: Avoid freeing a registered video_device twice - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f1c4f3885df1f09bcab5296d86834d104f865e86
generic

media: zoran: Avoid freeing a registered video_device twice - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c4acac8cdc005b2d14b6cef5e215d264212857f3
generic

media: zoran: Avoid freeing a registered video_device twice - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/672dbccf4351370dad002d3c78dbb29ca1588f22
generic

media: zoran: Avoid freeing a registered video_device twice - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4d99d8d0d895489064783601a516bd45812fa992
generic

media: zoran: Avoid freeing a registered video_device twice - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3ad6cf27505017a6794f5f96c31218c2291e951b
generic

media: zoran: Avoid freeing a registered video_device twice - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0735e0b5a96761a9ce277a238e834008ad92a0a5

Vendor Advisories for CVE-2026-89870(2)

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

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (360 versions)
  • every version on: no fix on record
—
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 43× in last 7d / 123× 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 123 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-89870?
CVE-2026-89870 is a high vulnerability published on September 16, 2026. In the Linux kernel, the following vulnerability has been resolved: media: zoran: Avoid freeing a registered video_device twice zoraninitvideodevice() installs zoranvdev_release() as the videodevice release callback through zorantemplate. After videoregisterdevice() succeeds,…
When was CVE-2026-89870 disclosed?
CVE-2026-89870 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-2026-89870 actively exploited?
CVE-2026-89870 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-89870?
CVE-2026-89870 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-89870?
No fix for CVE-2026-89870 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-89870 are linked in the Vendor Advisories panel on this page.

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