CVE-2026-80706

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:

can: softing: fw_parse(): validate firmware record spans

fw_parse() reads a fixed record header, a firmware-provided payload, and a trailing checksum without knowing the end of the firmware blob. A truncated record can therefore make those reads exceed the blob.

The same record also supplies addresses and lengths for writes into DPRAM. The generic loader uses wrap-prone mixed signed arithmetic for its bounds check, while the application loader does not bound the staging copy at all.

Pass the firmware end to the parser and validate the full source record. Use a signed wide offset for generic DPRAM records and validate the application staging span against the mapped DPRAM before copying.

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
2%
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

can: softing: fw_parse(): validate firmware record spans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/856d6cb04e5407523566b075841dcd6423757d1c
generic

can: softing: fw_parse(): validate firmware record spans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/808ed899dcf8bdef66894fda5eb7ee4bb0eb8dc1
generic

can: softing: fw_parse(): validate firmware record spans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2ee477e541a6d5e434d6a4041c6b677ab42e1d82
generic

can: softing: fw_parse(): validate firmware record spans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ad331e26fd213a19fee0de18cdacd67b7ff5b478
generic

can: softing: fw_parse(): validate firmware record spans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ae588e5b9cc268de1aabf30f939f0870717ca164
generic

can: softing: fw_parse(): validate firmware record spans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d0eac0ea7cf493e787fd7b4a556e43ef03cb4b50
generic

can: softing: fw_parse(): validate firmware record spans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/84c850b08fc0d671c245144b619683129b55690a
generic

can: softing: fw_parse(): validate firmware record spans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f6d9a6a9512430b395a1940d7b216394fd02d30b

Vendor Advisories for CVE-2026-80706(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 19:30 UTCEG score recompute
  3. 2026-08-29 19:30 UTCGHSA enrichment
  4. 2026-08-29 07:25 UTCEG score recompute
  5. 2026-08-29 07:25 UTCGHSA enrichment
  6. 2026-08-29 06:35 UTCEG score recompute▲ 7.80
  7. 2026-08-29 06:35 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 07:33 UTCEG score recompute
  12. 2026-08-28 07:32 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-80706?
CVE-2026-80706 is a high vulnerability published on August 28, 2026. In the Linux kernel, the following vulnerability has been resolved: can: softing: fw_parse(): validate firmware record spans fw_parse() reads a fixed record header, a firmware-provided payload, and a trailing checksum without knowing the end of the firmware blob. A truncated record can therefore…
When was CVE-2026-80706 disclosed?
CVE-2026-80706 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-2026-80706 actively exploited?
CVE-2026-80706 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 97.9% of all scored CVEs.
What is the CVSS score of CVE-2026-80706?
CVE-2026-80706 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-80706?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80706, 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.

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