CVE-2026-80717 - Vulnerability Details

- sctp: validate Adaptation Indication parameter length

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.

Published: 2026-08-28

Score: n/a

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< fa7861ddbe3b525b5d541c15c3953d3569e6eb0e
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 4c92c601c061e5602db2edeea54fef74aa304027
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 7b7e4e3640d57bd8857f0052c8b0d8ed4e5e954a
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 93942b5772e0eee4147d4799cc1b936ae12fa615
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 5fd7cfc708dfc988ae9920c21075e6121bc89926
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 17b412468c7a44f66a385bda48cdc1e94e39bd6d
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< bfa28cf99eb4d096c87da939f54233444d209ca5
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 74b21f52c5c5a71a05c0ff70e513f4f04ff28b17

Linux

affected

Version	Status	Constraints
`2.6.12`	affected	—
`0`	unaffected	< 2.6.12
`5.10.265`	unaffected	≤ 5.10.*
`5.15.216`	unaffected	≤ 5.15.*
`6.1.183`	unaffected	≤ 6.1.*
`6.6.151`	unaffected	≤ 6.6.*
`6.12.103`	unaffected	≤ 6.12.*
`6.18.44`	unaffected	≤ 6.18.*
`7.1.8`	unaffected	≤ 7.1.*
`7.2`	unaffected	≤ *

No data.

Vendor Product Confidence Versions

Linux

Linux Kernel

99%

Version	Status	Scheme	Platform
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,fa7861ddbe3b525b5d541c15c3953d3569e6eb0e)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,4c92c601c061e5602db2edeea54fef74aa304027)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,7b7e4e3640d57bd8857f0052c8b0d8ed4e5e954a)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,93942b5772e0eee4147d4799cc1b936ae12fa615)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,5fd7cfc708dfc988ae9920c21075e6121bc89926)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,17b412468c7a44f66a385bda48cdc1e94e39bd6d)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,bfa28cf99eb4d096c87da939f54233444d209ca5)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,74b21f52c5c5a71a05c0ff70e513f4f04ff28b17)`	affected	code_commit	—

Linux

Linux Kernel

99%

Version	Status	Scheme	Platform
`2.6.12`	affected	semver	—
`[0,2.6.12)`	unaffected	semver	—
`[5.10.265,5.11.0)`	unaffected	semver	—
`[5.15.216,5.16.0)`	unaffected	semver	—
`[6.1.183,6.2.0)`	unaffected	semver	—
`[6.6.151,6.7.0)`	unaffected	semver	—
`[6.12.103,6.13.0)`	unaffected	semver	—
`[6.18.44,6.19.0)`	unaffected	semver	—
`[7.1.8,7.2.0)`	unaffected	semver	—
`[7.2,*]`	unaffected	generic	—

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Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

No advisories yet.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00164.

Key SSVC decision points have not yet been added.

References

Link	Providers
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

History

Fri, 28 Aug 2026 17:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-126 CWE-200

Fri, 28 Aug 2026 13:15:00 +0000

Type	Values Removed	Values Added
Weaknesses	CWE-119 CWE-20

Fri, 28 Aug 2026 11:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-119 CWE-20

Fri, 28 Aug 2026 07:30:00 +0000

Type	Values Removed	Values Added
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.
Title		sctp: validate Adaptation Indication parameter length
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
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

Subscriptions

Linux Linux Kernel

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-08-28T06:53:14.886Z

Updated: 2026-08-28T06:53:14.886Z

Reserved: 2026-08-26T14:34:25.788Z

Link: CVE-2026-80717

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-28T08:16:57.430

Modified: 2026-08-28T08:16:57.430

Link: CVE-2026-80717

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-28T17:00:13Z

Weaknesses

Tracking

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