CVE-2026-72061

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: 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:

net: sit: require CAP_NET_ADMIN in the device netns for changelink

ipip6_changelink() operates on at most two netns, dev_net(dev) and the tunnel link netns t->net. They differ once the device is created in or moved to a netns other than the one the request runs in. The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev), so a caller privileged there but not in t->net can rewrite a tunnel that lives in t->net.

Gate ipip6_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed. sit was the one tunnel type not covered by the recent series that added this check to the other changelink() handlers.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (8)

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

net: sit: require CAP_NET_ADMIN in the device netns for changelink - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cb41b308e9d867725d965b291dd085028e36a480
generic

net: sit: require CAP_NET_ADMIN in the device netns for changelink - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c5a0ae895432596b2f464172da8218e2d84e2932
generic

net: sit: require CAP_NET_ADMIN in the device netns for changelink - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c0ea1aedb37bb979e864ed7787975434bbd9db73
generic

net: sit: require CAP_NET_ADMIN in the device netns for changelink - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/99ae3248b33df94201915d9c32e7470cdf08cfcd
generic

net: sit: require CAP_NET_ADMIN in the device netns for changelink - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7d139dec96691cde96cb40ed293e2d13d994fb4f
generic

net: sit: require CAP_NET_ADMIN in the device netns for changelink - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/388ccffbd2e7e5e4271f291085a7451865705305
generic

net: sit: require CAP_NET_ADMIN in the device netns for changelink - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3118e97dae533fb45964b87bbed1801afcff7c65
generic

net: sit: require CAP_NET_ADMIN in the device netns for changelink - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/27ccb68e7cccead5d8c611665a45d23032d468b3

Vendor Advisories for CVE-2026-72061(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 31× 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. 2026-08-21 02:10 UTCEG score recompute
  2. 2026-08-21 02:10 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 13:05 UTCGHSA enrichment
  5. 2026-08-19 23:45 UTCEG score recompute
  6. 2026-08-19 23:45 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 10:41 UTCGHSA enrichment
  9. 2026-08-18 21:38 UTCEG score recompute
  10. 2026-08-18 21:37 UTCGHSA enrichment
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 08:32 UTCGHSA enrichment
  14. 2026-08-17 19:26 UTCEG score recompute
  15. 2026-08-17 19:26 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 06:22 UTCEG score recompute
  18. 2026-08-17 06:22 UTCGHSA enrichment
  19. 2026-08-17 06:01 UTCEG score recompute▲ 8.80
  20. 2026-08-17 06:00 UTCGHSA enrichment
  21. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  22. 2026-08-17 05:34 UTCEG score recompute
  23. 2026-08-17 05:34 UTCGHSA enrichment
  24. 2026-08-17 05:24 UTCMITRE cvelistV5
  25. 2026-08-16 14:56 UTCEPSS rescore
Show 6 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 02:15 UTCEPSS rescore
  3. 2026-08-15 06:44 UTCGHSA enrichment
  4. 2026-08-15 06:23 UTCNVD update
  5. 2026-08-15 06:18 UTCEG score recompute
  6. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72061?
CVE-2026-72061 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: net: sit: require CAPNETADMIN in the device netns for changelink ipip6changelink() operates on at most two netns, devnet(dev) and the tunnel link netns t->net. They differ once the device is created in or moved to a netns other…
When was CVE-2026-72061 disclosed?
CVE-2026-72061 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-2026-72061 actively exploited?
CVE-2026-72061 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 92.6% of all scored CVEs.
What is the CVSS score of CVE-2026-72061?
CVE-2026-72061 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-72061?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72061, 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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