Vulnerability · Published Jun 10, 2025 · Assigned by VulDB

CVE-2025-5969D-Link DIR-632 HTTP POST Request biurl_grou FUN_00425fd8 stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in DIR-632 from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.4%top 26.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in D-Link DIR-632 FW103B08 and classified as critical. Affected by this vulnerability is the function FUN_00425fd8 of the file /biurl_grou of the component HTTP POST Request Handler. The manipulation leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Affected products (as reported)

Vendor	Product	Versions
D-Link	DIR-632	FW103B08

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-311845 | D-Link DIR-632 HTTP POST Request biurl_grou FUN_00425fd8 stack-based overflow vdb-entry, technical-description
VDB-311845 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #592336 | dlink DIR-632 FW103B08 Stack-based buffer overflow third-party-advisory
https://github.com/xiaobor123/vul-finds/tree/main/vul-find-dir632-dlink-FUN_00425fd8 related
https://github.com/xiaobor123/vul-finds/tree/main/vul-find-dir632-dlink-FUN_00425fd8#poc exploit
https://www.dlink.com/ product