CVE-2026-74281

HIGHPre-NVD 7.57.5
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: 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:

tipc: reject inverted service ranges from peer bindings

tipc_update_nametbl() inserts a binding advertised by a peer node using the lower and upper service-range bounds taken directly from the wire, without checking that lower <= upper. The local bind path validates the ordering (tipc_uaddr_valid()), but the name-distribution path does not.

A binding with lower > upper is inserted at the far end of the service-range rbtree (keyed on lower) where no lookup or withdrawal can ever match it (service_range_foreach_match() requires sr->lower <= end). The publication, its service_range node and the augmented rbtree entry are then leaked for the lifetime of the namespace, and there is no per-peer cap equivalent to TIPC_MAX_PUBL on locally created bindings.

Reject inverted ranges in the network path as well. A peer node can otherwise leak unbounded binding-table memory by sending PUBLICATION items with lower > upper.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
49%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (7)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

tipc: reject inverted service ranges from peer bindings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f683200b83a0085d4e11abea8c1fdd9fdfb95b0b
generic

tipc: reject inverted service ranges from peer bindings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f1715d92ee3095d9215b493a8603a81f646fcf61
generic

tipc: reject inverted service ranges from peer bindings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cd1955f81bd8ebeef51b324989ac871ad1947fb6
generic

tipc: reject inverted service ranges from peer bindings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/973bf0ed896b9898668dbadb82ed849d7d573010
generic

tipc: reject inverted service ranges from peer bindings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7e401233f9bb74a626e70698d0d62f3a94ac0676
generic

tipc: reject inverted service ranges from peer bindings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/581ef56e5c34d475056ce086dc2ba0e872ba6857
generic

tipc: reject inverted service ranges from peer bindings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2afb648f7b99216c687db1f89739c995e1144153

Vendor Advisories for CVE-2026-74281(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 29× in last 7d / 29× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 19:39 UTCGHSA enrichment
  3. 2026-08-20 07:32 UTCGHSA enrichment
  4. 2026-08-19 19:26 UTCEG score recompute
  5. 2026-08-19 19:26 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 07:18 UTCGHSA enrichment
  8. 2026-08-18 19:12 UTCEG score recompute
  9. 2026-08-18 19:12 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 07:05 UTCGHSA enrichment
  13. 2026-08-17 18:58 UTCEG score recompute
  14. 2026-08-17 18:58 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 06:22 UTCEG score recompute
  17. 2026-08-17 06:22 UTCGHSA enrichment
  18. 2026-08-17 05:56 UTCEG score recompute 7.50
  19. 2026-08-17 05:56 UTCGHSA enrichment
  20. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  21. 2026-08-17 05:27 UTCEG score recompute
  22. 2026-08-17 05:27 UTCGHSA enrichment
  23. 2026-08-17 05:24 UTCMITRE cvelistV5
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 14:56 UTCEPSS rescore
Show 4 more
  1. 2026-08-16 02:15 UTCEPSS rescore
  2. 2026-08-15 06:23 UTCNVD update
  3. 2026-08-15 06:17 UTCEG score recompute
  4. 2026-08-15 06:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74281?
CVE-2026-74281 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: tipc: reject inverted service ranges from peer bindings tipcupdatenametbl() inserts a binding advertised by a peer node using the lower and upper service-range bounds taken directly from the wire, without checking that lower <=…
When was CVE-2026-74281 disclosed?
CVE-2026-74281 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74281 actively exploited?
CVE-2026-74281 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 50.7% of all scored CVEs.
What is the CVSS score of CVE-2026-74281?
CVE-2026-74281 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-74281?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74281, 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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