5.3

CVE-2026-76649: tp-link system inc. tl-wr841n v14 NULL Pointer Dereference

CVSS: 5.3v4.0MediumDeferred
Published 28-08-2026Last modified 31-08-2026
Open JSON

Vulnerability summary

CVE-2026-76649 is a medium (CVSS 5.3) NULL Pointer Dereference vulnerability in tp-link system inc. tl-wr841n v14. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.8% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.27%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-08-2026
    PublishedVulnerability first disclosed.
  2. 31-08-2026
    Last modifiedVulnerability information updated.

Description

A NULL pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly. Successful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

+0.09 pp

From 0.18% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Tp-link system inc.1 product
  • tl-wr841n v14< TL-WR841N(US)_V14_4.19 Build 260820 Rel.33478 | < TL-WR841N(EU)_V14_4.19 Build 260821 Rel.56588

1 vendor · 1 product

References

3 links