CVE-2026-80717sctp: validate Adaptation Indication parameter length
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before fa7861ddbe3b525b5d541c15c3953d3569e6eb0e; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 4c92c601c061e5602db2edeea54fef74aa304027; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7b7e4e3640d57bd8857f0052c8b0d8ed4e5e954a; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 93942b5772e0eee4147d4799cc1b936ae12fa615; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 5fd7cfc708dfc988ae9920c21075e6121bc89926; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 17b412468c7a44f66a385bda48cdc1e94e39bd6d; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before bfa28cf99eb4d096c87da939f54233444d209ca5; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 74b21f52c5c5a71a05c0ff70e513f4f04ff28b17 | CNA record |
References
- https://git.kernel.org/stable/c/fa7861ddbe3b525b5d541c15c3953d3569e6eb0e
- https://git.kernel.org/stable/c/4c92c601c061e5602db2edeea54fef74aa304027
- https://git.kernel.org/stable/c/7b7e4e3640d57bd8857f0052c8b0d8ed4e5e954a
- https://git.kernel.org/stable/c/93942b5772e0eee4147d4799cc1b936ae12fa615
- https://git.kernel.org/stable/c/5fd7cfc708dfc988ae9920c21075e6121bc89926
- https://git.kernel.org/stable/c/17b412468c7a44f66a385bda48cdc1e94e39bd6d
- https://git.kernel.org/stable/c/bfa28cf99eb4d096c87da939f54233444d209ca5
- https://git.kernel.org/stable/c/74b21f52c5c5a71a05c0ff70e513f4f04ff28b17
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.