CVE-2025-20742 — Heap-based Buffer Overflow in Software Development KIT

CWE-122 — Heap-based Buffer OverflowCWE-787 — Out-of-bounds Write3 documents3 sources
Severity
8.0HIGHNVD
EPSS
0.0%
top 94.39%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mediatek Software Development KITOpenwrt
Timeline
PublishedNov 4

Description

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00432680; Issue ID: MSV-3949.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.1 | Impact: 5.9

Affected Packages2 packages

▶NVDopenwrt/openwrt19.07.0, 21.02.0+1

🔴Vulnerability Details

2
CVEList
CVE-2025-20742: In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check↗2025-11-04
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GHSA
GHSA-xfp6-6hcf-pxmv: In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check↗2025-11-04
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CVE-2025-20742 — Heap-based Buffer Overflow | cvebase