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CVE-2026-74469

8.8 · HIGH

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…

Published Aug 15, 2026EPSS 1.47%

Overview

CVE-2026-74469 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/09e722030e8148ba4ed1e42c6b2ea57bda9f9895Refgit.kernel.org/stable/c/4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0Refgit.kernel.org/stable/c/546221b86ceeba0d8fec92d46a0604bb7b62be07Refgit.kernel.org/stable/c/6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75Refgit.kernel.org/stable/c/80f48523a0fe42db2e7375dff4e38a25c117090aRefgit.kernel.org/stable/c/b453e00da1211e997b82743d28af7714c59c05c8Refgit.kernel.org/stable/c/bd0e9289e2642f6a5c54faad304ce0f41e926d22Refgit.kernel.org/stable/c/dfea32dd76f390e3155177b0038cc47b01386198

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74469?

CVE-2026-74469 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-74469?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-74469?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-74469?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74469 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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