PatchTheCVECVE-2025-20740: In wlan STA driver, there is a possible out of bounds read due to a race condition
CVE-2025-20740 is a medium-severity flaw (CVSS 4.7) affecting software development kit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
In wlan STA driver, there is a possible out of bounds read due to a race condition. This could lead to local information disclosure with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00435337; Issue ID: MSV-4036.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.7 (Medium) |
| Attack vector | Local |
| Attack complexity | High |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 99%) |
| CISA exploited list | No |
| Weakness | CWE-367 |
| Published | 2025-11-04 |
| Last modified | 2026-10-18 |
Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-20740?
software development kit: upgrade to newer than 3.7. Exact commands for each OS are on this page.
Is CVE-2025-20740 being exploited?
CVE-2025-20740 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-20740 affect?
CVE-2025-20740 affects software development kit. Severity is medium (CVSS 4.7). In wlan STA driver, there is a possible out of bounds read due to a race condition. This could lead to local information disclosure with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00435
How urgent is CVE-2025-20740?
Priority 17/100. No elevated risk signals yet.
Related CVEs
- CVE-2025-20742 HIGH 8.0 UPGRADE MITIGATE In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check
- CVE-2025-20728 HIGH 7.8 DOWNGRADE In wlan STA driver, there is a possible out of bounds write due to an incorrect bounds check
- CVE-2025-20733 HIGH 7.8 UPGRADE MITIGATE In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check
- CVE-2025-20735 HIGH 7.8 UPGRADE MITIGATE In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check
- CVE-2025-20737 HIGH 7.8 UPGRADE MITIGATE In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check