CVE-2026-80717
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.33% probability · 26th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/17b412468c7a44f66a385bda48cdc1e94e39bd6d
- https://git.kernel.org/stable/c/4c92c601c061e5602db2edeea54fef74aa304027
- https://git.kernel.org/stable/c/5fd7cfc708dfc988ae9920c21075e6121bc89926
- https://git.kernel.org/stable/c/74b21f52c5c5a71a05c0ff70e513f4f04ff28b17
- https://git.kernel.org/stable/c/7b7e4e3640d57bd8857f0052c8b0d8ed4e5e954a
- https://git.kernel.org/stable/c/93942b5772e0eee4147d4799cc1b936ae12fa615
- https://git.kernel.org/stable/c/bfa28cf99eb4d096c87da939f54233444d209ca5
- https://git.kernel.org/stable/c/fa7861ddbe3b525b5d541c15c3953d3569e6eb0e
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.