CVE-2026-80944: Software Security Vulnerability Vulnerability

HIGH

Advisory Identifier: GHSA-63w9-8935-246m

CVSS 7.8

Published 2026-09-11

Advisory Summary

CVE-2026-80944 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80944 at a Glance

CVE Identifier CVE-2026-80944

GHSA Identifier GHSA-63w9-8935-246m

Severity HIGH

CVSS v3.1 Base Score 7.8

CWE Classification General Security Weakness

Affected Product Software

Package Ecosystem Maven

Published Date 2026-09-11

Last Updated 2026-09-14

Security Impact

CVSS: 7.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)

Attack Complexity Low (AC:L)

Privileges Required Low (PR:L)

User Interaction None (UI:N)

Scope Unchanged (S:U)

Confidentiality High (C:H)

Integrity High (I:H)

Availability High (A:H)

How to Fix CVE-2026-80944

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-80944, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: Detach sync cmd buffer on interrupted wait mwifiex synchronous commands keep the caller-provided data buffer in cmd_node->data_buf. Several callers pass stack-allocated objects there. If wait_event_interruptible_timeout() is interrupted, the caller can return and release that stack object while the firmware command is still the current command. A late firmware response then reaches the normal response handler, which can copy data through cmd_node->data_buf into the stale stack address. This fixes a stack corruption observed during repeated association and disassociation cycles. The panic trace showed the command wait being interrupted immediately before a bad pointer dereference: cmd_wait_q terminated: -512 Unable to handle kernel paging request at virtual address 002c583837384662 Kernel panic - not syncing: stack-protector: Kernel stack is corrupted ... Tainted: [M]=MACHINE_CHECK The fault address decodes as little-endian ASCII: 0x002c583837384662 -> "bF878X,\0" which is a fragment of the VERSION_EXT firmware string exposed as debugfs "verext": w8997o-V4, RF878X, FP92, 16.92.21.p153.7 The same runs also showed corrupted control data containing: 0x2400372e333531 -> "153.7\0$" which is the tail of the same VERSION_EXT string. This points at a late VERSION_EXT response writing through a stale stack-backed data_buf after the interrupted wait returned. After cancelling pending commands on an interrupted or timed-out wait, detach the caller-owned data buffer from the still-current command. This preserves the existing command cancellation behaviour while preventing a late response from writing through a pointer whose lifetime ended with the waiting caller. Tested on an i.MX8MP board using an 88W8997.

References

NVD — CVE-2026-80944 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-80944

git.kernel.org/stable/c/20ee9c03f2... WEB

https://git.kernel.org/stable/c/20ee9c03f261bf6ac59331e2ca7b46b23646412a

git.kernel.org/stable/c/8c67b8c502... WEB

https://git.kernel.org/stable/c/8c67b8c50286e0cb7f18d667e6a37a2ec6e08ff9

git.kernel.org/stable/c/9024c7729e... WEB

https://git.kernel.org/stable/c/9024c7729eb523cf4f3a4203966d3a4aaabf030d

git.kernel.org/stable/c/9e06c9c8a1... WEB

https://git.kernel.org/stable/c/9e06c9c8a1f10c55d9bc5d139656d58795e64483

git.kernel.org/stable/c/b1bbeb8970... WEB

https://git.kernel.org/stable/c/b1bbeb8970eeb6c6bf3cd5314138103f7b69446d

git.kernel.org/stable/c/d29a165588... WEB

https://git.kernel.org/stable/c/d29a165588b6a0cf7a38db5cbd602aef7ef8c658

git.kernel.org/stable/c/ef06882c7d... WEB

https://git.kernel.org/stable/c/ef06882c7d8a7400b67d0d003b1008093dd589ed

git.kernel.org/stable/c/f2134d6ff3... WEB

https://git.kernel.org/stable/c/f2134d6ff30cd6e1bf63d6b0a5d8e0839f0168b3

Frequently Asked Questions

What is CVE-2026-80944?

CVE-2026-80944 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2026-80944?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What is the CVSS score of CVE-2026-80944?

CVE-2026-80944 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

What CWE is associated with CVE-2026-80944?

CVE-2026-80944 is classified under General Security Weakness.

How can I check Maven dependencies for CVE-2026-80944?

Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-63w9-8935-246m",
  "modified" : "2026-09-14T15:32:20Z",
  "published" : "2026-09-11T21:31:20Z",
  "aliases" : [ "CVE-2026-80944" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: Detach sync cmd buffer on interrupted wait\n\nmwifiex synchronous commands keep the caller-provided data buffer in\ncmd_node->data_buf. Several callers pass stack-allocated objects there.\n\nIf wait_event_interruptible_timeout() is interrupted, the caller can\nreturn and release that stack object while the firmware command is still\nthe current command. A late firmware response then reaches the normal\nresponse handler, which can copy data through cmd_node->data_buf into the\nstale stack address.\n\nThis fixes a stack corruption observed during repeated association and\ndisassociation cycles. The panic trace showed the command wait being\ninterrupted immediately before a bad pointer dereference:\n\n  cmd_wait_q terminated: -512\n  Unable to handle kernel paging request at virtual address 002c583837384662\n  Kernel panic - not syncing: stack-protector: Kernel stack is corrupted\n  ...\n  Tainted: [M]=MACHINE_CHECK\n\nThe fault address decodes as little-endian ASCII:\n\n  0x002c583837384662 -> \"bF878X,\\0\"\n\nwhich is a fragment of the VERSION_EXT firmware string exposed as\ndebugfs \"verext\":\n\n  w8997o-V4, RF878X, FP92, 16.92.21.p153.7\n\nThe same runs also showed corrupted control data containing:\n\n  0x2400372e333531 -> \"153.7\\0$\"\n\nwhich is the tail of the same VERSION_EXT string. This points at a late\nVERSION_EXT response writing through a stale stack-backed data_buf after\nthe interrupted wait returned.\n\nAfter cancelling pending commands on an interrupted or timed-out wait,\ndetach the caller-owned data buffer from the still-current command. This\npreserves the existing command cancellation behaviour while preventing a\nlate response from writing through a pointer whose lifetime ended with the\nwaiting caller.\n\nTested on an i.MX8MP board using an 88W8997.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80944"
  }, {
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    "url" : "https://git.kernel.org/stable/c/20ee9c03f261bf6ac59331e2ca7b46b23646412a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8c67b8c50286e0cb7f18d667e6a37a2ec6e08ff9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9024c7729eb523cf4f3a4203966d3a4aaabf030d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9e06c9c8a1f10c55d9bc5d139656d58795e64483"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b1bbeb8970eeb6c6bf3cd5314138103f7b69446d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d29a165588b6a0cf7a38db5cbd602aef7ef8c658"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ef06882c7d8a7400b67d0d003b1008093dd589ed"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f2134d6ff30cd6e1bf63d6b0a5d8e0839f0168b3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:18:59Z"
  }
}

CVSS V3

7.8 HIGH