What is the CVSS score of CVE-2025-25900?

CVE-2025-25900 has a CVSS 3.1 base score of 4.9 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.2%.

Which versions of Tl Wr841Nd V11 Firmware are affected by CVE-2025-25900?

Organizations using TP-Link TL-WR841ND should be aware of moderate risk from CVE-2025-25900, a buffer overflow vulnerability rated CVSS 4.9.

How to fix or mitigate CVE-2025-25900?

Within 30 days: Identify affected systems running TP-Link TL-WR841ND and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Tl Wr841Nd V11 Firmware CVE-2025-25900

MEDIUM

Classic Buffer Overflow (CWE-120)

2025-02-13 cve@mitre.org

TP-Link Buffer Overflow Denial Of Service Tl Wr841Nd V11 Firmware

4.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.9 MEDIUM

AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:26 vuln.today

CVE Published

Feb 13, 2025 - 16:16 nvd

MEDIUM 4.9

DescriptionCVE.org

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.

AnalysisAI

A buffer overflow vulnerability was discovered in TP-Link TL-WR841ND V11 via the username and password parameters at /userRpm/PPPoEv6CfgRpm.htm. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. 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. Affected products include: Tp-Link Tl-Wr841Nd V11 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.