CVE-2026-89888

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: i2c: ov02a10: fix endpoint parsing use-after-free

The ov02a10_check_hwcfg() function calls fwnode_handle_put(ep) immediately after allocating and parsing the endpoint. However, it subsequently calls fwnode_property_read_u32() using the same 'ep' handle, leading to a potential use-after-free.

Additionally, reading the optional 'ovti,mipi-clock-voltage' property used to overwrite the 'ret' variable. If the property was missing, 'ret' would become negative, and this failure code would be incorrectly returned at the end of the function, causing probe to fail entirely.

Fix the use-after-free by moving fwnode_property_read_u32() before the endpoint is parsed and freed. Avoid the error leak by not assigning the result of fwnode_property_read_u32() to 'ret'.

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
5th
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 (7)

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

media: i2c: ov02a10: fix endpoint parsing use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9de48ba68f56de9fe20ebd3f9728d22af25f9a91
generic

media: i2c: ov02a10: fix endpoint parsing use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/94971ba0592ca77ec99b292226a4b398763315b8
generic

media: i2c: ov02a10: fix endpoint parsing use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/90f9b421fc6d4f2edab7521efdb1e58571468d33
generic

media: i2c: ov02a10: fix endpoint parsing use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8ddb3b69f67b0632ff3830da18de3e8dcaf5884b
generic

media: i2c: ov02a10: fix endpoint parsing use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e13784452785cd8402b228bea53bc6a027ade84
generic

media: i2c: ov02a10: fix endpoint parsing use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4c2988bf1ad2753240a38db10ce23e87ec542f8f
generic

media: i2c: ov02a10: fix endpoint parsing use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/213b2489130357c8d3e8d4fb2bdab88791ce3185

Vendor Advisories for CVE-2026-89888(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 38× in last 7d / 112× 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 112 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-89888?
CVE-2026-89888 is a high vulnerability published on September 16, 2026. In the Linux kernel, the following vulnerability has been resolved: media: i2c: ov02a10: fix endpoint parsing use-after-free The ov02a10checkhwcfg() function calls fwnodehandleput(ep) immediately after allocating and parsing the endpoint. However, it subsequently calls fwnodepropertyread_u32()…
When was CVE-2026-89888 disclosed?
CVE-2026-89888 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-2026-89888 actively exploited?
CVE-2026-89888 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-89888?
CVE-2026-89888 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-2026-89888?
No fix for CVE-2026-89888 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-2026-89888 are linked in the Vendor Advisories panel on this page.

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