CVE-2026-80649

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:

firmware: arm_scmi: Fix OOB in scmi_power_name_get()

scmi_power_name_get() does not validate the domain number passed by the external caller, which may lead to an out-of-bounds access.

Fix this by returning "unknown" for invalid domains, like scmi_reset_name_get() does.

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 (7)

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

firmware: arm_scmi: Fix OOB in scmi_power_name_get() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f9ef3f66f4b18078e464b7606f9497e4dbeb9905
generic

firmware: arm_scmi: Fix OOB in scmi_power_name_get() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/11bb771f3c55b4cef3879e69da4ddecd6085569c
generic

firmware: arm_scmi: Fix OOB in scmi_power_name_get() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/11daac2817dca75e3eabb2050bc620c29e686fcd
generic

firmware: arm_scmi: Fix OOB in scmi_power_name_get() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0db2bb3c948ef8b7364768554d6ab5e1544dc441
generic

firmware: arm_scmi: Fix OOB in scmi_power_name_get() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/30aa348494531adfb043b2e883afc0439e5fcdca
generic

firmware: arm_scmi: Fix OOB in scmi_power_name_get() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ca94597440fa546e56293abe9d0af6c73535d44e
generic

firmware: arm_scmi: Fix OOB in scmi_power_name_get() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/01613f5e4ff6c080260615392338e92e261d109b

Vendor Advisories for CVE-2026-80649(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 14× in last 7d / 14× 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 06:34 UTCEG score recompute
  2. 2026-08-30 06:33 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 19:00 UTCEG score recompute
  5. 2026-08-29 19:00 UTCGHSA enrichment
  6. 2026-08-29 07:26 UTCEG score recompute
  7. 2026-08-29 07:26 UTCGHSA enrichment
  8. 2026-08-29 06:36 UTCEG score recompute 7.80
  9. 2026-08-29 06:36 UTCGHSA enrichment
  10. 2026-08-29 06:33 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  11. 2026-08-28 21:42 UTCEPSS rescore
  12. 2026-08-28 08:20 UTCNVD update
  13. 2026-08-28 07:34 UTCEG score recompute
  14. 2026-08-28 07:32 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-80649?
CVE-2026-80649 is a high vulnerability published on August 28, 2026. In the Linux kernel, the following vulnerability has been resolved: firmware: armscmi: Fix OOB in scmipowernameget() scmipowername_get() does not validate the domain number passed by the external caller, which may lead to an out-of-bounds access. Fix this by returning "unknown" for invalid domains,…
When was CVE-2026-80649 disclosed?
CVE-2026-80649 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-2026-80649 actively exploited?
CVE-2026-80649 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-2026-80649?
CVE-2026-80649 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-80649?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80649, 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-2026-80649

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