CVE record · CVE-2026-0834

Logic Vulnerability on TP-Link Archer C20, Archer AX53 and TL-WR841N v13

CVSS 7.2 HighEPSS 0.0043 · 37th percentile

Published by the CVE Program (CNA: TPLink) at 21 Jan 2026, 17:14 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
TP-Link Systems Inc.	Archer C20 v6.0, Archer AX53 v1.0	affected before V6_251031 custom affected before V1_251215 custom Other versions: unaffected
TP-Link Systems Inc.	Archer C20 V5	affected before US_V5_260419 custom affected before EU_V5_260317 custom Other versions: unaffected
TP Link Systems Inc.	TL-WR841N v13	affected before 0.9.1 Build 20231120 Rel.62366 custom Other versions: unaffected

Identifiers: CVE-2026-0834
CNA: TPLink
Weakness (CWE): CWE-290
Tags: TP-Link Systems Inc. Archer C20 v6.0, Archer AX53 v1.0
TP-Link Systems Inc. Archer C20 V5
TP Link Systems Inc. TL-WR841N v13
Authentication bypass
Published: 21 Jan 2026
Updated: 28 Apr 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.2	High	4.0	CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N	CNA (TPLink)

CISA KEV Not listed.
EPSS 0.0043, the 37th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 21 Jan 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.