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CVE-2025-6151

TP-Link TL-WR940N, TL-WR841N WanSlaacCfgRpm.htm buffer overflow

HIGH
8.2
CVSS Score
Published: June 17, 2025 at 01:00 AM UTC
Updated: June 17, 2026 at 10:01 AM UTC
3 products affected across 1 vendorTl WR940N FirmwareTL-WR940NLink Tl WR841N

Using TL-WR940N V4 by TP-Link Systems INC.?

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Severity
HIGH8.2
Exploit prediction
EPSS 5%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Tl WR940N Firmware· TP-Link
95%
All versions
tp-link-tl-wr940n (same device)
Link Tl WR841N· TP-Link
60%
v ≤ 160325
TL-WR940N· TP-Link
60%
v ≤ 160617

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

ExploitIssue TrackingThird Party Advisory
Source: f23511db-6c3e-4e32-a477-6aa17d310630
https://github.com/WhereisDoujo/CVE/issues/7
Permissions RequiredVDB Entry
Source: f23511db-6c3e-4e32-a477-6aa17d310630
https://vuldb.com/?ctiid.312626
Third Party AdvisoryVDB Entry
Source: f23511db-6c3e-4e32-a477-6aa17d310630
https://vuldb.com/?id.312626
Third Party AdvisoryVDB Entry
Source: f23511db-6c3e-4e32-a477-6aa17d310630
https://vuldb.com/?submit.593031
Source: f23511db-6c3e-4e32-a477-6aa17d310630
https://www.tp-link.com/us/support/faq/4536/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHTPLink
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119CWE-120

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