CVE-2026-74603

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-22. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: 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:

ptp: ocp: Fix board ID over-read

The EEPROM board ID is a fixed 13-byte field and is not guaranteed to contain a NUL terminator. Passing it directly to devlink_info_version_fixed_put() treats it as a C string and may read beyond the field.

Format at most OCP_BOARD_ID_LEN bytes into the existing local buffer before reporting the ID. Use a precision limit because the snprintf() output size alone does not bound the source string scan.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 25, 2026

Advisory Details (6)

Auto-updated Aug 25, 2026
No patch confirmed yet.
generic

ptp: ocp: Fix board ID over-read - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6b69f2ef10cdb018c0b127a7cab88e590bbddba4
generic

ptp: ocp: Fix board ID over-read - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f8d7e5751267637190eff887c971d5b468106213
generic

ptp: ocp: Fix board ID over-read - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5fd91dd4a143479b0575fb1f202ec1c501e71fd5
generic

ptp: ocp: Fix board ID over-read - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f92558bbe78d6284fedd053900f82a70f0aa8707
generic

ptp: ocp: Fix board ID over-read - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3d965811be78473654e6e8cc8e4fb7b6b87aa6c1
generic

ptp: ocp: Fix board ID over-read - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/72ef3ce80078199bfad32f98d055f44ba7cd0c3d

Vendor Advisories for CVE-2026-74603(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 24× in last 7d / 27× 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 19:50 UTCGHSA enrichment
  3. 2026-08-29 07:39 UTCEG score recompute
  4. 2026-08-29 07:39 UTCGHSA enrichment
  5. 2026-08-28 21:42 UTCEPSS rescore
  6. 2026-08-28 19:30 UTCGHSA enrichment
  7. 2026-08-28 07:21 UTCGHSA enrichment
  8. 2026-08-27 19:13 UTCEG score recompute
  9. 2026-08-27 19:13 UTCGHSA enrichment
  10. 2026-08-27 14:25 UTCEPSS rescore
  11. 2026-08-27 07:05 UTCGHSA enrichment
  12. 2026-08-26 18:55 UTCEG score recompute
  13. 2026-08-26 18:55 UTCGHSA enrichment
  14. 2026-08-26 14:47 UTCEPSS rescore
  15. 2026-08-26 06:47 UTCGHSA enrichment
  16. 2026-08-25 18:38 UTCEG score recompute
  17. 2026-08-25 18:38 UTCGHSA enrichment
  18. 2026-08-25 13:49 UTCEPSS rescore
  19. 2026-08-25 06:30 UTCEG score recompute
  20. 2026-08-25 06:30 UTCGHSA enrichment
  21. 2026-08-25 05:45 UTCEG score recompute▲ 7.10
  22. 2026-08-25 05:45 UTCGHSA enrichment
  23. 2026-08-25 05:45 UTCMITRE cvelistV5CVSS v3 → 7.1 · severity → HIGH
  24. 2026-08-24 14:18 UTCEPSS rescore
  25. 2026-08-22 16:24 UTCNVD update
Show 2 more
  1. 2026-08-22 15:42 UTCEG score recompute
  2. 2026-08-22 15:35 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74603?
CVE-2026-74603 is a high vulnerability published on August 22, 2026. In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: Fix board ID over-read The EEPROM board ID is a fixed 13-byte field and is not guaranteed to contain a NUL terminator. Passing it directly to devlinkinfoversionfixedput() treats it as a C string and may read beyond the…
When was CVE-2026-74603 disclosed?
CVE-2026-74603 was first published in the National Vulnerability Database on August 22, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74603 actively exploited?
CVE-2026-74603 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 97.5% of all scored CVEs.
What is the CVSS score of CVE-2026-74603?
CVE-2026-74603 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-74603?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74603, 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

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