CVE-2026-68142

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 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:

geneve: require CAP_NET_ADMIN in the device netns for changelink

A tunnel changelink() operates on at most two netns, dev_net(dev) and the sticky underlay netns geneve->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 geneve->net can rewrite a geneve device whose underlay lives in geneve->net.

geneve_changelink() applies the new configuration against geneve->net: geneve_link_config() and the geneve_quiesce()/geneve_unquiesce() pair reopen the underlay sockets in that netns (geneve_sock_add() uses geneve->net), so the same reasoning as the tunnel changelink series applies here.

Gate geneve_changelink() with rtnl_dev_link_net_capable(), at the top of the op before any attribute is parsed, matching ipgre_changelink() and the rest of the "require CAP_NET_ADMIN in the device netns for changelink" series.

Found by 0sec automated security-research tooling (https://0sec.ai).

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
4%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 19, 2026

Advisory Details (5)

Auto-updated Aug 14, 2026
No patch confirmed yet.
generic

geneve: 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/f8c498585d2a08aa623748353c3e61467b7e9fd2
generic

geneve: 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/9de5518fc1fab583526a8f66b8e505c4864dc60a
generic

geneve: 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/95f45e20f1b2cec13823f0f68060ab4b2261b2c1
generic

geneve: 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/8efb8f8bbb353b8f2fdf4f37534c6d96c9f69e01
generic

geneve: 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/2abdacc927c92fa6a9cc8341e8c9b88dcb561553

Vendor Advisories for CVE-2026-68142(2)

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 / 42× 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 19:41 UTCGHSA enrichment
  3. 2026-08-20 06:34 UTCGHSA enrichment
  4. 2026-08-19 17:26 UTCEG score recompute
  5. 2026-08-19 17:26 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 16:55 UTCEG score recompute
  8. 2026-08-19 16:55 UTCGHSA enrichment
  9. 2026-08-19 10:48 UTCGHSA enrichment
  10. 2026-08-18 21:40 UTCEG score recompute
  11. 2026-08-18 21:40 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 08:33 UTCGHSA enrichment
  14. 2026-08-17 19:21 UTCEG score recompute
  15. 2026-08-17 19:21 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 05:40 UTCEG score recompute
  18. 2026-08-17 05:40 UTCGHSA enrichment
  19. 2026-08-17 05:11 UTCEG score recompute
  20. 2026-08-17 05:11 UTCGHSA enrichment
  21. 2026-08-16 17:10 UTCEG score recompute
  22. 2026-08-16 17:10 UTCGHSA enrichment
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 04:02 UTCEG score recompute
  25. 2026-08-16 04:02 UTCGHSA enrichment
Show 17 more
  1. 2026-08-15 14:54 UTCGHSA enrichment
  2. 2026-08-15 01:46 UTCEG score recompute
  3. 2026-08-15 01:46 UTCGHSA enrichment
  4. 2026-08-15 01:30 UTCEPSS rescore
  5. 2026-08-14 12:39 UTCEG score recompute
  6. 2026-08-14 12:39 UTCGHSA enrichment
  7. 2026-08-13 23:31 UTCEG score recompute
  8. 2026-08-13 23:31 UTCGHSA enrichment
  9. 2026-08-13 22:46 UTCEG score recompute▲ 8.80
  10. 2026-08-13 22:45 UTCGHSA enrichment
  11. 2026-08-13 22:44 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  12. 2026-08-13 22:00 UTCEPSS rescore
  13. 2026-08-13 07:30 UTCEG score recompute
  14. 2026-08-13 07:30 UTCGHSA enrichment
  15. 2026-08-10 13:24 UTCNVD update
  16. 2026-08-10 12:21 UTCEG score recompute
  17. 2026-08-10 12:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68142?
CVE-2026-68142 is a high vulnerability published on August 10, 2026. In the Linux kernel, the following vulnerability has been resolved: geneve: require CAPNETADMIN in the device netns for changelink A tunnel changelink() operates on at most two netns, dev_net(dev) and the sticky underlay netns geneve->net. They differ once the device is created in or moved to a…
When was CVE-2026-68142 disclosed?
CVE-2026-68142 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68142 actively exploited?
CVE-2026-68142 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 96.3% of all scored CVEs.
What is the CVSS score of CVE-2026-68142?
CVE-2026-68142 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-68142?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68142, 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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