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CVE-2026-80717

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: sctp: validate Adaptation Indication parameter length The Adaptation Layer Indication parameter contains a fixed 32-bit Adaptat…

Published Aug 28, 2026EPSS 0.33%

Overview

CVE-2026-80717 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

sctp: validate Adaptation Indication parameter length

The Adaptation Layer Indication parameter contains a fixed 32-bit

Adaptation Code Point after its parameter header. However,

sctp_verify_param() accepts a header-only parameter because the generic

parameter walker only requires the header to be present.

sctp_process_param() then reads adaptation_ind beyond the declared

parameter. When the malformed parameter is last in an INIT, the read

starts at the receive skb tail, and the value is copied into the state

cookie returned in the INIT ACK. This may disclose four receive-buffer

tail bytes.

Require the declared parameter length to match the fixed structure size

and abort the association through the existing invalid parameter length

path otherwise.

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/17b412468c7a44f66a385bda48cdc1e94e39bd6dRefgit.kernel.org/stable/c/4c92c601c061e5602db2edeea54fef74aa304027Refgit.kernel.org/stable/c/5fd7cfc708dfc988ae9920c21075e6121bc89926Refgit.kernel.org/stable/c/74b21f52c5c5a71a05c0ff70e513f4f04ff28b17Refgit.kernel.org/stable/c/7b7e4e3640d57bd8857f0052c8b0d8ed4e5e954aRefgit.kernel.org/stable/c/93942b5772e0eee4147d4799cc1b936ae12fa615Refgit.kernel.org/stable/c/bfa28cf99eb4d096c87da939f54233444d209ca5Refgit.kernel.org/stable/c/fa7861ddbe3b525b5d541c15c3953d3569e6eb0e

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80717?

CVE-2026-80717 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-80717?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-80717?

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-2026-80717?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80717 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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