CVE-2026-80976High· 7.0▾ TwilightA flaw was found in the Linux kernel's IPv6 Segment Routing (seg6) implementation. An unprivileged user can exploit this vulnerability by injecting a specially crafted IPv6 packet. This can lead to an out-of-bounds read, potentially causin…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 4.7
none → medium
— → 4.7
none → medium
— → 9.8
none → critical
Last analysed / modified upstream
9.8 → 4.7
critical → medium
0.2% → 0.7%
9.8 → 7
critical → high
A flaw was found in the Linux kernel's IPv6 Segment Routing (seg6) implementation. An unprivileged user can exploit this vulnerability by injecting a specially crafted IPv6 packet. This can lead to an out-of-bounds read, potentially causing a system crash and resulting in a Denial of Service (DoS).
kernel: seg6: reset IP6CB after IPv6 decapsulation — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-14.
Affected:
No fix planned:
Not affected:
Affected
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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