CVE-2026-74469
highpriority · track · 11EPSS 0.015 · 74 %ileexploit · PoCDEEUFRRUEPSS · scored 2026-10-26
In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow sctp_assoc_add_peer() increments the association's 16-bit transport_count for every new unique peer. Adding the 65,536th transport wraps the count to zero. SCTP sock_diag uses transport_count to reserve the INET_DIAG_PEERS payload, then copies one sockaddr_storage for every entry in transport_addr_list. After the wrap, a diagnostic dump reserves an empty payload and writes 8 MiB of peer addresses past the skb tail. Reject a new unique peer when transport_count has reached U16_MAX. Perform the check after the existing-peer lookup so a duplicate address continues to return its existing transport at the limit.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (3)
Public proof-of-concept and weaponised exploit code.
- 0xBlackash/CVE-2026-74469CVE-2026-74469PoC · poc_in_github
- HORKimhab/CVE-2026-74469CVE-2026-74469 DiagSpillPoC · poc_in_github
affected products (47)
Products and version ranges known to be affected.
- Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
advisories (5)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2852Linux Kernel: Mehrere SchwachstellenDeutsch2026-08-16csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um root Rechte zu erlangen, um einen Denial of Service herbeizuführen oder einen nicht näher spezifizierten Angriff durchzuführen.
- CERTFR-2026-AVI-1333Multiples vulnérabilités dans le noyau Linux d'UbuntuFrançais2026-10-16vendor · certfrFR
- CERTFR-2026-AVI-1335Multiples vulnérabilités dans le noyau Linux de SUSEFrançais2026-10-16vendor · certfrFR
- CERTFR-2026-AVI-1372Multiples vulnérabilités dans les produits SUSEFrançais2026-10-23vendor · certfrFR
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (19)
External citations — patches, advisories, analysis.
- https://git.kernel.org/stable/c/09e722030e8148ba4ed1e42c6b2ea57bda9f9895cnnvd
- https://git.kernel.org/stable/c/4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0cnnvd
- https://git.kernel.org/stable/c/546221b86ceeba0d8fec92d46a0604bb7b62be07cnnvd
- https://git.kernel.org/stable/c/6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75cnnvd
- https://git.kernel.org/stable/c/bd0e9289e2642f6a5c54faad304ce0f41e926d22cnnvd
- https://www.kernel.org/Patchcnnvd
- https://git.kernel.org/stable/c/09e722030e8148ba4ed1e42c6b2ea57bda9f9895enisa_euvd
- https://git.kernel.org/stable/c/4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0enisa_euvd
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