CVE-2026-90210

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-17. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 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:

bpf: Fix UAF in bpf_trampoline_multi_attach_free on update failure

When bpf_trampoline_update() fails before modify_fentry_multi()/ unregister_fentry_multi() is called, cur_image is unchanged (cur_image == old_image) and ftrace still calls into it. Freeing old_image in that case causes a UAF.

Only free old_image when it differs from cur_image.

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 17, 2026

Last Modified

September 18, 2026

Advisory Details (2)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

bpf: Fix UAF in bpf_trampoline_multi_attach_free on update failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/65c3939656fd7848e9274faa07c26748b5bf049c
generic

bpf: Fix UAF in bpf_trampoline_multi_attach_free on update failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0253073fb7d79a2dd2eae9581ea16db2aef395a6

Vendor Advisories for CVE-2026-90210(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 68× 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 10:57 UTCEG score recompute
  2. 2026-10-05 10:57 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 23:07 UTCGHSA enrichment
  5. 2026-10-04 11:19 UTCGHSA enrichment
  6. 2026-10-03 23:36 UTCEG score recompute
  7. 2026-10-03 23:36 UTCGHSA enrichment
  8. 2026-10-03 11:51 UTCGHSA enrichment
  9. 2026-10-03 00:02 UTCEG score recompute
  10. 2026-10-03 00:02 UTCGHSA enrichment
  11. 2026-10-02 12:18 UTCGHSA enrichment
  12. 2026-10-02 00:09 UTCGHSA enrichment
  13. 2026-10-01 12:25 UTCGHSA enrichment
  14. 2026-10-01 00:37 UTCEG score recompute
  15. 2026-10-01 00:36 UTCGHSA enrichment
  16. 2026-09-30 15:04 UTCEPSS rescore
  17. 2026-09-30 12:39 UTCGHSA enrichment
  18. 2026-09-30 00:53 UTCEG score recompute
  19. 2026-09-30 00:52 UTCGHSA enrichment
  20. 2026-09-29 13:08 UTCGHSA enrichment
  21. 2026-09-29 01:19 UTCEG score recompute
  22. 2026-09-29 01:19 UTCGHSA enrichment
  23. 2026-09-28 13:52 UTCEPSS rescore
  24. 2026-09-28 13:52 UTCEPSS rescore
  25. 2026-09-28 13:36 UTCGHSA enrichment
Show 43 more
  1. 2026-09-28 01:52 UTCGHSA enrichment
  2. 2026-09-27 14:05 UTCGHSA enrichment
  3. 2026-09-27 02:22 UTCEG score recompute
  4. 2026-09-27 02:22 UTCGHSA enrichment
  5. 2026-09-26 15:59 UTCEPSS rescore
  6. 2026-09-26 14:37 UTCGHSA enrichment
  7. 2026-09-26 02:38 UTCEG score recompute
  8. 2026-09-26 02:38 UTCGHSA enrichment
  9. 2026-09-25 14:54 UTCGHSA enrichment
  10. 2026-09-25 03:10 UTCGHSA enrichment
  11. 2026-09-24 15:24 UTCEG score recompute
  12. 2026-09-24 15:24 UTCGHSA enrichment
  13. 2026-09-24 14:04 UTCEPSS rescore
  14. 2026-09-24 03:40 UTCEG score recompute
  15. 2026-09-24 03:40 UTCGHSA enrichment
  16. 2026-09-23 17:54 UTCEPSS rescore
  17. 2026-09-23 15:55 UTCGHSA enrichment
  18. 2026-09-23 04:11 UTCGHSA enrichment
  19. 2026-09-22 16:27 UTCEG score recompute
  20. 2026-09-22 16:27 UTCGHSA enrichment
  21. 2026-09-22 16:01 UTCEPSS rescore
  22. 2026-09-22 04:41 UTCEG score recompute
  23. 2026-09-22 04:41 UTCGHSA enrichment
  24. 2026-09-21 21:09 UTCEPSS rescore
  25. 2026-09-21 16:57 UTCGHSA enrichment
  26. 2026-09-21 05:13 UTCEG score recompute
  27. 2026-09-21 05:13 UTCGHSA enrichment
  28. 2026-09-20 20:16 UTCEPSS rescore
  29. 2026-09-20 17:29 UTCGHSA enrichment
  30. 2026-09-20 05:42 UTCGHSA enrichment
  31. 2026-09-19 17:58 UTCEG score recompute
  32. 2026-09-19 17:58 UTCGHSA enrichment
  33. 2026-09-19 06:14 UTCEG score recompute
  34. 2026-09-19 06:14 UTCGHSA enrichment
  35. 2026-09-18 19:28 UTCEPSS rescore
  36. 2026-09-18 18:31 UTCEG score recompute
  37. 2026-09-18 18:31 UTCGHSA enrichment
  38. 2026-09-18 18:04 UTCEG score recompute▲ 7.80
  39. 2026-09-18 18:04 UTCGHSA enrichment
  40. 2026-09-18 17:59 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  41. 2026-09-17 17:23 UTCNVD update
  42. 2026-09-17 16:40 UTCEG score recompute
  43. 2026-09-17 16:19 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-90210?
CVE-2026-90210 is a high vulnerability published on September 17, 2026. In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF in bpftrampolinemultiattachfree on update failure When bpftrampolineupdate() fails before modifyfentrymulti()/ unregisterfentrymulti() is called, cur_image is unchanged (curimage == oldimage) and ftrace still calls…
When was CVE-2026-90210 disclosed?
CVE-2026-90210 was first published on September 17, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90210 actively exploited?
CVE-2026-90210 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-2026-90210?
CVE-2026-90210 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-2026-90210?
No fix for CVE-2026-90210 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-2026-90210 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-90210

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