Security readout for executives and security teams
Plain-English summary
A timing flaw in Linux Wi-Fi handling can let fast packet transmission begin before a wireless station is fully initialized. This may cause kernel or driver crashes, disrupting affected systems. The supplied CVSS score is 8.8, but the source bundle does not establish real-world exploitation or demonstrate confidentiality or integrity compromise.
Executive priority
Treat this as a high-priority stability and security update for Wi-Fi-enabled Linux assets, especially exposed endpoints and appliances. Patch through supported distribution channels after focused testing. It is not supported as an active-exploitation emergency by the supplied evidence, but adjacent-network reachability and possible kernel crashes justify prompt action.
Technical view
A race in mac80211 enables fast-xmit before the station has been uploaded to the driver. drv_tx may then receive an incomplete station object and access uninitialized drv_priv data, potentially crashing the system. The kernel fix checks sta->uploaded and reevaluates fast-xmit after station insertion. The issue is classified as CWE-362.
Likely exposure
Exposure is concentrated in systems using affected Linux kernels with mac80211 Wi-Fi and the relevant fast-xmit path. The CVSS vector describes an adjacent-network, low-complexity attack requiring no privileges or user interaction. The bundle lists affected releases from 4.2 through 6.8, but backports make package-level verification necessary.
Exploitation context
CISA KEV status is false, and the supplied sources do not report active exploitation or a public exploit. Potential crashes are directly supported. Although the CVSS vector rates confidentiality, integrity, and availability impacts high, the provided technical description does not explain or demonstrate compromise beyond accessing uninitialized driver-private data and possible crashes.
Researcher notes
The affected-version data contains repeated commit identifiers, an ambiguous “0” entry, no CPEs, and branch endpoint versions that should not be treated as a precise package inventory. Validate exposure using distribution package metadata and backport status. The source bundle supports a race-triggered crash condition; it does not provide evidence proving practical code execution or data compromise.
Mitigation direction
- Install a vendor-supported kernel package containing the applicable referenced stable-kernel fix.
- Review Linux distribution advisories because vendors may backport fixes without changing the upstream version as expected.
- Prioritize Wi-Fi-enabled endpoints, appliances, and embedded systems using mac80211.
- If immediate updating is impossible, consult vendor guidance for supported temporary mitigations.
Validation and detection
- Inventory kernel package versions on systems with Wi-Fi hardware or mac80211 loaded.
- Map each distribution package to its security advisory and documented backported fix.
- Confirm the applicable stable-kernel correction is present in source or package changelogs.
- Regression-test wireless association and traffic handling after updating.
- Monitor affected systems for kernel crashes or driver faults while remediation proceeds.
Public sources used
- CVE Program record for CVE-2024-26779
- CVE List V5 record
- Linux stable fix 76fad117
- Linux stable fix 85720b69
- Linux stable fix 5ffab99e
- Linux stable fix 88c18fd0
- Linux stable fix eb39bb54
- Linux stable fix 54b79d87
- Linux stable fix 28128027
- Linux stable fix bcbc84af
- Debian LTS announcement, June 2024
- Debian LTS announcement, June 2024
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-362: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-26779 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/76fad1174a0cae6fc857b9f88b261a2e4f07d587CVE reference, Linux
- https://git.kernel.org/stable/c/85720b69aef177318f4a18efbcc4302228a340e5CVE reference, Linux
- https://git.kernel.org/stable/c/5ffab99e070b9f8ae0cf60c3c3602b84eee818ddCVE reference, Linux
- https://git.kernel.org/stable/c/88c18fd06608b3adee547102505d715f21075c9dCVE reference, Linux
- https://git.kernel.org/stable/c/eb39bb548bf974acad7bd6780fe11f9e6652d696CVE reference, Linux
- https://git.kernel.org/stable/c/54b79d8786964e2f840e8a2ec4a9f9a50f3d4954CVE reference, Linux
- https://git.kernel.org/stable/c/281280276b70c822f55ce15b661f6d1d3228aaa9CVE reference, Linux
- https://git.kernel.org/stable/c/bcbc84af1183c8cf3d1ca9b78540c2185cd85e7fCVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlCVE reference, CVE · x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlCVE reference, CVE · x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.