Vulnerability · Published Jul 25, 2025 · Assigned by VulDB

CVE-2025-8169D-Link DIR-513 HTTP POST Request formSetWanPPTPpath formSetWanPPTPcallback buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in DIR-513 from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)2.2%top 17.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability classified as critical has been found in D-Link DIR-513 1.10. This affects the function formSetWanPPTPcallback of the file /goform/formSetWanPPTPpath of the component HTTP POST Request Handler. The manipulation of the argument curTime leads to buffer overflow. It is possible to initiate the attack 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-513	1.10

Weakness: CWE-120, 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-317583 | D-Link DIR-513 HTTP POST Request formSetWanPPTPpath formSetWanPPTPcallback buffer overflow vdb-entry, technical-description
VDB-317583 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #620817 | D-Link DIR-513 1.10 Buffer Overflow third-party-advisory
https://github.com/InfiniteLin/Lin-s-CVEdb/blob/main/DIR-513/formSetWanPPPoE.md exploit
https://www.dlink.com/ product