What is CVE-2025-25900?

CVE-2025-25900 is a medium-severity vulnerability in Tp-link Tl-wr841nd_v11, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.9/10. Published 2025-02-13.

How severe is CVE-2025-25900?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Buffer overflow in Tp-link Tl-wr841nd_v11

CVE-2025-25900

A buffer overflow vulnerability was discovered in TP-Link TL-WR841ND V11 via the username and password parameters at /userRpm/PPPoEv6CfgRpm.htm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (30.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cve@mitre.org (Broken Link)

Frequently asked questions

What is CVE-2025-25900?: CVE-2025-25900 is a medium-severity vulnerability in Tp-link Tl-wr841nd_v11, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.9/10. Published 2025-02-13.
How severe is CVE-2025-25900?: Medium severity. CVSS v3 base score is 4.9 out of 10.