CVE-2026-72053

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: ipip: require CAP_NET_ADMIN in the device netns for changelink

ipip_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 ipip_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.

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
6%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (6)

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

net: ipip: 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/d49edcc65e0a37cc9b386a94415c5d6670ca8b71
generic

net: ipip: 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/983cc4aa7e6f633b34c3ee743771252d7afa9a90
generic

net: ipip: 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/91571643e554ae89a91942380d5f5361fb7060a2
generic

net: ipip: 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/8211a26324667980a463c069469a818e71207e02
generic

net: ipip: 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/68cadc3698c7de88966d306d12ec9c6217da228a
generic

net: ipip: 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/26544021d5c49cc6ae8a968ccb5033e6363854a4

Vendor Advisories for CVE-2026-72053(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 01:31 UTCEG score recompute
  2. 2026-08-21 01:31 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 12:35 UTCGHSA enrichment
  5. 2026-08-19 23:39 UTCEG score recompute
  6. 2026-08-19 23:39 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 08:19 UTCGHSA enrichment
  14. 2026-08-17 19:18 UTCEG score recompute
  15. 2026-08-17 19:18 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 06:01 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 06:45 UTCGHSA enrichment
  4. 2026-08-15 06:23 UTCNVD update
  5. 2026-08-15 06:19 UTCEG score recompute
  6. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72053?
CVE-2026-72053 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: net: ipip: require CAPNETADMIN in the device netns for changelink ipipchangelink() 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-2026-72053 disclosed?
CVE-2026-72053 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-2026-72053 actively exploited?
CVE-2026-72053 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 93.9% of all scored CVEs.
What is the CVSS score of CVE-2026-72053?
CVE-2026-72053 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-72053?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72053, 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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