CVE-2026-74675

HIGHPre-NVD 7.87.8
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-22. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 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:

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get

kbd_keycode() reads vc->port.tty without acquiring a tty reference, racing against con_shutdown() which clears port.tty under a different lock. Use tty_port_tty_get()/tty_kref_put() to hold a proper reference for the duration the tty pointer is needed.

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 22, 2026

Last Modified

August 25, 2026

Advisory Details (8)

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

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e25d47a526939ad44b75f778b8a7500562b84fc1
generic

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cc4a1a2ce0c58eafd477effb055863935260ddc1
generic

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b664592e9ba8c47c9e23408db7ba52eb9f946c8a
generic

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3f6b1d3fcfc26dc3fc85262f753439df93b055b4
generic

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/38a0aa593ebc275aea6f79534d07f44e43768ce6
generic

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cab5a342f0589334046741006d8a280514f94235
generic

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/38400673c9bfb39cfc87539e1a072087e98f4e4f
generic

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b84fd400f80adf4d1c88fbce50ae1cf2f8119e65

Vendor Advisories for CVE-2026-74675(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 28× in last 7d / 31× 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 22:53 UTCGHSA enrichment
  3. 2026-08-29 11:53 UTCGHSA enrichment
  4. 2026-08-29 00:47 UTCEG score recompute
  5. 2026-08-29 00:46 UTCGHSA enrichment
  6. 2026-08-28 21:42 UTCEPSS rescore
  7. 2026-08-28 11:45 UTCGHSA enrichment
  8. 2026-08-28 00:45 UTCEG score recompute
  9. 2026-08-28 00:45 UTCGHSA enrichment
  10. 2026-08-27 14:25 UTCEPSS rescore
  11. 2026-08-27 13:28 UTCGHSA enrichment
  12. 2026-08-27 02:28 UTCGHSA enrichment
  13. 2026-08-26 15:29 UTCEG score recompute
  14. 2026-08-26 15:29 UTCGHSA enrichment
  15. 2026-08-26 14:47 UTCEPSS rescore
  16. 2026-08-26 04:29 UTCGHSA enrichment
  17. 2026-08-25 17:29 UTCEG score recompute
  18. 2026-08-25 17:29 UTCGHSA enrichment
  19. 2026-08-25 13:49 UTCEPSS rescore
  20. 2026-08-25 06:29 UTCEG score recompute
  21. 2026-08-25 06:29 UTCGHSA enrichment
  22. 2026-08-25 05:55 UTCEG score recompute 7.80
  23. 2026-08-25 05:55 UTCGHSA enrichment
  24. 2026-08-25 05:55 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  25. 2026-08-25 05:25 UTCEG score recompute
Show 6 more
  1. 2026-08-25 05:25 UTCGHSA enrichment
  2. 2026-08-25 05:25 UTCMITRE cvelistV5
  3. 2026-08-24 14:18 UTCEPSS rescore
  4. 2026-08-22 16:24 UTCNVD update
  5. 2026-08-22 15:41 UTCEG score recompute
  6. 2026-08-22 15:35 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74675?
CVE-2026-74675 is a high vulnerability published on August 22, 2026. In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbdkeycode with ttyportttyget kbd_keycode() reads vc->port.tty without acquiring a tty reference, racing against con_shutdown() which clears port.tty under a different lock. Use…
When was CVE-2026-74675 disclosed?
CVE-2026-74675 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-2026-74675 actively exploited?
CVE-2026-74675 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 97.1% of all scored CVEs.
What is the CVSS score of CVE-2026-74675?
CVE-2026-74675 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-74675?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74675, 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-2026-74675

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