CVE-2025-6151 TP-Link TL-WR940N, TL-WR841N WanSlaacCfgRpm.htm buffer overflow
Remote attackers can exploit a buffer overflow in unsupported TP-Link routers to potentially execute code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-6151?
CVE-2025-6151 is a high-severity memory corruption vulnerability in TP-Link Systems INC. TL-WR841N V11, published on 17 Jun 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability has been found in TP-Link TL-WR940N V4 and TL-WR841N V11. Affected by this issue is some unknown functionality of the file /userRpm/WanSlaacCfgRpm.htm, which may lead to buffer overflow. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.
Which versions are affected by CVE-2025-6151?
It affects 1 product.
Products include Tp-Link Tl-Wr940n Firmware.
How do I fix CVE-2025-6151?
No fix has been published for CVE-2025-6151 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-6151 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6151 exists.
Other vulnerabilities in TP-Link Systems INC. TL-WR841N V11
- CVE-2023-36355 Memory corruption in n/a
- CVE-2022-24355 Memory corruption in TL-WR940N
- CVE-2019-6989 Memory corruption in n/a
- CVE-2026-11409 OS Command Injection in IPv6 PPPoE Configuration in TP-Link TL-WR940N
- CVE-2026-11410 OS Command Injection in BigPond Cable (BPA) Configuration in TP-Link TL-WR940N
Sources
Also known as GHSA-pc68-4m2q-7jqf.