CVE-2026-68476: linux
CVSS: 9.8v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-68476DEBIAN-CVE-2026-68476
Published 15-08-2026Last modified 02-09-2026
Vulnerability summary
CVE-2026-68476 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 52.8% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.71%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 9Timeline
- 15-08-2026PublishedVulnerability first disclosed.
- 02-09-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: ipvs: reload ip header after head reallocation __ip_vs_get_out_rt() calls skb_ensure_writable() which may reallocate skb->head.
CVSS metrics
4 scores · 4 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.71%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
+0.02 pp
From 0.69% on 19-09-2026
19-09-202619-10-2026
EPSS score0.71%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu168 products
- linuxAll versions (No fix recorded) | < 6.8.0-147.147 | < 7.0.0-34.34
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 6.8.0-1067.70 | < 7.0.0-1013.13
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.187-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
- linux≥ 8d8e20e2d7bba8c50e64e0eca1cb83956f468e49, < 4f2d1151421520d7ae16ca8d367d0ca09f5dfbd7 | ≥ 8d8e20e2d7bba8c50e64e0eca1cb83956f468e49, < 657118cad620172dfd8f6ed5717fd75c0d1f7a5a | ≥ 8d8e20e2d7bba8c50e64e0eca1cb83956f468e49, < a10f5080afbed242640f2984328de25f84557da1 | ≥ 8d8e20e2d7bba8c50e64e0eca1cb83956f468e49, < ac6ac3d35bfc0ade9d17d354c84e503a946ebdab | ≥ 8d8e20e2d7bba8c50e64e0eca1cb83956f468e49, < e51687fc56c2e39ea6e9532925f1aabd4d529f61 | ≥ 8d8e20e2d7bba8c50e64e0eca1cb83956f468e49, < 3fb7edd2018bb1ad0a68157383d9b9dac33dd645 | ≥ 8d8e20e2d7bba8c50e64e0eca1cb83956f468e49, < ad1e14710b360bda087ebf9fb82460eb5ef775de | ≥ 8d8e20e2d7bba8c50e64e0eca1cb83956f468e49, < a2f57827bf7c695b8c72dc4511cae8e86582369d | 4.10
3 vendors · 170 products
