Buffer overflow in TP-Link Tl-Wr841n
CVE-2025-53715
A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/Wan6to4TunnelCfgRpm.htm file due to missing input parameter validation, which may lead to the buffer overflow to cause a crash of the web service and result in a denial-of-service (DoS) condition. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (23.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Tp-link Tl-wr841n — versions 11
- Tp-link Tl-wr841n_firmware
- Tp-link Systems Inc. Tl-wr841n V11 — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- f23511db-6c3e-4e32-a477-6aa17d310630 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-53715?
- CVE-2025-53715 is a high-severity vulnerability in TP-Link Tl-Wr841n, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2025-07-29.
- How severe is CVE-2025-53715?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-53715 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.