Security readout for executives and security teams
Plain-English summary
A Linux ath11k Wi-Fi driver flaw can let code sleep where the kernel requires atomic execution, potentially causing warnings, instability, or broader security impact. The supplied assessment rates it high severity, but exploitation requires local, low-privileged access and no user interaction.
Executive priority
Prioritize remediation on endpoints and appliances actively using ath11k, especially security-sensitive or multi-user systems. Treat this as a high-severity local kernel issue, not evidence of an internet-wide emergency. Use normal accelerated patching after vendor version confirmation.
Technical view
ath11k_mac_disable_peer_fixed_rate() was used with ieee80211_iterate_stations_atomic() despite potentially sleeping while sending WMI commands. Stable fixes replace that iterator with ieee80211_iterate_stations_mtx(). The supplied CVSS 3.1 score is 7.8 with local, low-privileged attack requirements and potential confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to Linux systems using affected kernels and the Qualcomm ath11k wireless driver, particularly where bitrate-mask handling reaches the vulnerable path. It is not described as remotely reachable. The flattened version data is ambiguous, so confirm exact affected and fixed releases with the kernel or distribution vendor.
Exploitation context
The bundle provides no evidence of public exploitation, exploit availability, or inclusion in CISA KEV; KEV is explicitly false. The CVSS vector indicates a local attacker with low privileges, but the supplied technical description demonstrates a kernel-context warning rather than a documented exploitation chain.
Researcher notes
The resolution changes station iteration from an atomic iterator to a mutex-protected iterator because the callback may sleep. No CWE is supplied. The provided affected-version list lacks clear range semantics and includes repeated commit identifiers, limiting precise exposure conclusions. No exploit mechanism beyond the concurrency-context defect is documented.
Mitigation direction
- Update to a vendor-supported kernel containing the applicable cited stable fix.
- Consult Linux distribution advisories to confirm fixed package versions for each deployed release.
- Prioritize systems using ath11k-supported Qualcomm Wi-Fi hardware.
- If updates are delayed, follow vendor guidance for safely limiting ath11k exposure.
Validation and detection
- Inventory kernel versions and determine whether the ath11k module is present or active.
- Map installed kernels against distribution advisories and the cited stable commits.
- Check kernel logs for sleeping-function or invalid-context warnings involving ath11k and WMI.
- After updating, verify the running kernel includes the applicable fix and monitor for recurring warnings.
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-2025-39732 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.
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.
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/9c0e3144924c7db701575a73af341d33184afeafCVE reference, Linux
- https://git.kernel.org/stable/c/7d4d0db0dc9424de2bdc0b45e919e4892603356fCVE reference, Linux
- https://git.kernel.org/stable/c/6bdef22d540258ca06f079f7b6ae100669a19b47CVE reference, Linux
- https://git.kernel.org/stable/c/65c12b104cb942d588a1a093acc4537fb3d3b129CVE 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.