CVE-2026-80680

HIGHPre-NVD 7.87.8
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: 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:

i2c: amd-mp2: Unregister callback on adapter add failure

amd_mp2_register_cb() stores the platform I2C context in the MP2 PCI driver's callback table before the adapter is registered. If i2c_add_adapter() fails, probe returns and devres frees the context, but the PCI driver can still dereference the stale pointer from its IRQ and system-sleep callbacks.

Unregister the callback before returning the adapter registration error.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 29, 2026

Advisory Details (8)

Auto-updated Aug 29, 2026
No patch confirmed yet.
generic

i2c: amd-mp2: Unregister callback on adapter add failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/82048795242f04275a3f49ffc66ad851b6120954
generic

i2c: amd-mp2: Unregister callback on adapter add failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8bf719659406e4a1b56d441e0c7da2085d891d96
generic

i2c: amd-mp2: Unregister callback on adapter add failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1883a09a37fed497b9efacf736c23624a472246b
generic

i2c: amd-mp2: Unregister callback on adapter add failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cf107c5983dc70fcf932a305581a5f976d908ff1
generic

i2c: amd-mp2: Unregister callback on adapter add failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b7c2c5c8868737926410b93d1223ada17625ead3
generic

i2c: amd-mp2: Unregister callback on adapter add failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4786d4d70dcd1e6b7e044f2348e00f201947b69c
generic

i2c: amd-mp2: Unregister callback on adapter add failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2f7789b3a9628819ebf90bcba8f9da3c139f8687
generic

i2c: amd-mp2: Unregister callback on adapter add failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9142a3dcff0d80a3a24ce159aee19ddc869d9784

Vendor Advisories for CVE-2026-80680(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 12× in last 7d / 12× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 19:03 UTCEG score recompute
  3. 2026-08-29 19:03 UTCGHSA enrichment
  4. 2026-08-29 07:26 UTCEG score recompute
  5. 2026-08-29 07:26 UTCGHSA enrichment
  6. 2026-08-29 06:36 UTCEG score recompute 7.80
  7. 2026-08-29 06:36 UTCGHSA enrichment
  8. 2026-08-29 06:33 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  9. 2026-08-28 21:42 UTCEPSS rescore
  10. 2026-08-28 08:20 UTCNVD update
  11. 2026-08-28 07:34 UTCEG score recompute
  12. 2026-08-28 07:32 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-80680?
CVE-2026-80680 is a high vulnerability published on August 28, 2026. In the Linux kernel, the following vulnerability has been resolved: i2c: amd-mp2: Unregister callback on adapter add failure amdmp2register_cb() stores the platform I2C context in the MP2 PCI driver's callback table before the adapter is registered. If i2caddadapter() fails, probe returns and…
When was CVE-2026-80680 disclosed?
CVE-2026-80680 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on August 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80680 actively exploited?
CVE-2026-80680 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 97.2% of all scored CVEs.
What is the CVSS score of CVE-2026-80680?
CVE-2026-80680 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-80680?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80680, 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

Explore the affected products and dependency analysis for CVE-2026-80680

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