CVE-2025-20735 — Heap-based Buffer Overflow in Software Development KIT

CWE-122 — Heap-based Buffer OverflowCWE-787 — Out-of-bounds Write3 documents3 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 96.91%
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 local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00435349; Issue ID: MSV-4051.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶NVDopenwrt/openwrt19.07.0, 21.02.0+1

🔴Vulnerability Details

2
GHSA
GHSA-hq6m-98jg-5pq7: 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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CVEList
CVE-2025-20735: 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-2025-20735 — Heap-based Buffer Overflow | cvebase