CVE-2024-57899

Mesh flag corruption via oversized bit scan

Published Jan 15, 2025 · Updated Aug 5, 2026

Bit-index corruption in Linux kernel 6.5 mac80211 allows adjacent attackers to corrupt mesh BSS change flags via Wi-Fi traffic. ieee80211_link_info_change_notify passes a 32-bit bits object to a scan sized for the 64-bit changed value, causing reads beyond the intended bitmap. Exposure requires a 32-bit system and mac80211 mesh activity; the published trace shows a kernel warning, while broader runtime consequences are unspecified.

CVSS severity7.6
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Bit-index corruption in Linux kernel 6.5 mac80211 allows adjacent attackers to corrupt mesh BSS change flags via Wi-Fi traffic. ieee80211_link_info_change_notify passes a 32-bit bits object to a scan sized for the 64-bit changed value, causing reads beyond the intended bitmap. Exposure requires a 32-bit system and mac80211 mesh activity; the published trace shows a kernel warning, while broader runtime consequences are unspecified.

The record

CVE
CVE-2024-57899
Published
Jan 15, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=15ddba5f43114c1fd9cd83676e04a9e1acf8e37f <36b739637d7042843f9df57212ecee6ed6e0d4b2
  2. Affected versionversion=15ddba5f43114c1fd9cd83676e04a9e1acf8e37f <49dba1ded8dd5a6a12748631403240b2ab245c34
  3. Affected versionversion=15ddba5f43114c1fd9cd83676e04a9e1acf8e37f <86772872f9f5097cd03d0e1c6813238bd38c250b
  4. Affected versionversion=6.5

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=15ddba5f43114c1fd9cd83676e04a9e1acf8e37f <36b739637d7042843f9df57212ecee6ed6e0d4b2; version=15ddba5f43114c1fd9cd83676e04a9e1acf8e37f <49dba1ded8dd5a6a12748631403240b2ab245c34; version=15ddba5f43114c1fd9cd83676e04a9e1acf8e37f <86772872f9f5097cd03d0e1c6813238bd38c250b; version=6.5

Published CVSS scores

7.6kernel.orgCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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