- —Not scoredno CVSS score yet
- 0.16%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ipvs: fix the checksum validations ip_vs_in_icmp_v6() is missing checksum validation for ICMPv6 packets from clients. In fact, as for TCP/UDP we should validate the checksum for ICMP packets only when we mangle the packets on MASQ or on reply for tunnel. Also, Sashiko points out that handle_response_icmp() being common for IPv4 and IPv6 is missing the pseudo-header calculation while validating ICMPv6 messages from real servers which is a problem if checksum is not validated by the hardware. Fix the problems by creating ip_vs_checksum_common_check() helper and use it for TCP/UDP/ICMP both for IPv4 and IPv6. Rely on the nf_checksum() for validating the ICMP messages but use it also for TCP and UDP. Use correct IP offset for IP_VS_DBG_RL_PKT for TCP/UDP/SCTP. IPVS packets (TCP/UDP/SCTP/ICMP) do not need checksum validation on LOCAL_OUT (local clients or local real servers) and on FORWARD (traffic from servers on LAN). Do it only on LOCAL_IN, in case nf_checksum() is not called on PRE_ROUTING. Also, ip_vs_checksum_complete() can be marked static.
Timeline
ID reserved
By Linux
- 9 days later
· 9 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 2a3b791e6e1169f374224d164738e9f7be703d77 – < d418d73acf8be62744dc47359dfdde8c2148845d
- affected 2a3b791e6e1169f374224d164738e9f7be703d77 – < b3869d9b54e76dff64118dee4c8fd9302fcd5171
- affected 2a3b791e6e1169f374224d164738e9f7be703d77 – < 9cbe2c0fdb71904ee929b1851cdc1c73341a03c0
- affected 2a3b791e6e1169f374224d164738e9f7be703d77 – < 00eb23829fd08df1b5e057cb6b625996a70e7e65
- affected 2a3b791e6e1169f374224d164738e9f7be703d77 – < 5558a85add073215b298f3e044ff9a6d86d714ae
- affected 2a3b791e6e1169f374224d164738e9f7be703d77 – < e876b75b9020a97bbdc79721e7fc749024891c65
- affected 2.6.28
- unaffected < 2.6.28
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.151 – ≤ 6.6.*
- unaffected 6.12.103 – ≤ 6.12.*
- unaffected 6.18.44 – ≤ 6.18.*
- unaffected 7.1.8 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References6
- https://git.kernel.org/stable/c/d418d73acf8be62744dc47359dfdde8c2148845d (opens in a new tab)
- https://git.kernel.org/stable/c/b3869d9b54e76dff64118dee4c8fd9302fcd5171 (opens in a new tab)
- https://git.kernel.org/stable/c/9cbe2c0fdb71904ee929b1851cdc1c73341a03c0 (opens in a new tab)
- https://git.kernel.org/stable/c/00eb23829fd08df1b5e057cb6b625996a70e7e65 (opens in a new tab)
- https://git.kernel.org/stable/c/5558a85add073215b298f3e044ff9a6d86d714ae (opens in a new tab)
- https://git.kernel.org/stable/c/e876b75b9020a97bbdc79721e7fc749024891c65 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-71651 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80901)Record last updated .