Security readout for executives and security teams
Plain-English summary
A Linux Wi-Fi driver can crash because two kernel components may both remove the same diagnostic filesystem entries. Systems using the ath11k wireless driver are the likely concern. The supplied CVSS score is 7.8, but the public description directly establishes a crash condition, not confirmed data theft or modification.
Executive priority
Schedule prompt remediation for exposed endpoints, appliances, or embedded systems using ath11k. Treat internet reachability alone as insufficient evidence of exposure because the supplied vector is local. Accelerate response where untrusted users can access the host or where kernel crashes would disrupt critical operations.
Technical view
mac80211 began deleting some per-interface debugfs entries, while ath11k could later attempt to delete them again. The resolution changes ath11k to rely on mac80211 for removal and create entries through the vif_add_debugfs handler. Exposure requires the affected kernel code, ath11k use, and relevant virtual-interface lifecycle activity.
Likely exposure
Most relevant to Linux systems running affected kernel builds with Qualcomm ath11k Wi-Fi hardware and debugfs-related interface handling. The bundle identifies affected 6.7-series data through 6.7.3 and references 6.8, but its version representation is ambiguous. Distribution backports may change actual exposure.
Exploitation context
The supplied vector describes a local, low-complexity, low-privilege issue requiring no user interaction. No CISA KEV listing or cited evidence of active exploitation is provided. The description supports a kernel crash; broader confidentiality and integrity effects asserted by the CVSS vector are not explained in the supplied sources.
Researcher notes
The root issue is conflicting ownership of per-vif debugfs cleanup between mac80211 and ath11k. The fix centralizes deletion in mac80211 and uses ath11k’s vif_add_debugfs callback for creation. The source bundle provides no CWE, exploit proof, crash trace, or detailed reachability prerequisites; confirm downstream patch equivalence with vendors.
Mitigation direction
- Update to a vendor-supported kernel containing the referenced upstream or stable correction.
- Confirm the distribution’s security advisory and backport status before relying on version numbers alone.
- Prioritize systems actively using ath11k wireless hardware.
- Restrict unnecessary local account access while affected systems await maintenance.
Validation and detection
- Inventory kernel versions and identify systems loading or depending on ath11k.
- Check vendor package changelogs for either referenced correction commit or an equivalent backport.
- Review kernel logs for ath11k, mac80211, debugfs, or interface-removal crashes.
- After updating, verify the corrected kernel is running and wireless interfaces operate normally.
Public sources used
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
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ATT&CK lookup starting points
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CVE-2024-26637 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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
1 official scoreWe 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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9LinuxVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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/aa74ce30a8a40d19a4256de4ae5322e71344a274CVE reference, Linux
- https://git.kernel.org/stable/c/556857aa1d0855aba02b1c63bc52b91ec63fc2ccCVE reference, Linux
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.