Trending
CVE-2026-0834

CVE detail

CVE-2026-0834

Logic vulnerability in TP-Link Archer C20 v5, 6.0, Archer AX53 v1.0 and TL-WR841N v13 (TDDP module) allows unauthenticated adjacent attackers to execute administrative commands including factory reset and device reboot without credentials. Attackers on the adjacent network can remotely trigger factory resets and reboots without credentials, causing configuration loss and interruption of device availability. This issue affects Archer C20 v6.0 < V6_251031, Archer C20 v5 <EU_V5_260317 or < US_V5_260419 Archer AX53 v1.0 < V1_251215 TL-WR841N v13 < 0.9.1 Build 20231120 Rel.62366

CVSS 7.2 · HighBuzz score 30.8

Buzz score

Why this CVE is surfacing

Buzz score total 30.8

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 20.8 · diversity 10.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

20.8

7 evidence mentions in the snapshot

Diversity score

10.0

2 sources across 2 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

7 source links · newest first

https://www.tp-link.com/us/support/faq/4905/www.tp-link.com
No excerpt available.
Vendor Advisorywww.tp-link.comJan 21, 2026, 6:16 PM
https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmwarewww.tp-link.com
No excerpt available.
Vendor Advisorywww.tp-link.comJan 21, 2026, 6:16 PM
https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmwarewww.tp-link.com
No excerpt available.
Vendor Advisorywww.tp-link.comJan 21, 2026, 6:16 PM
https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmwarewww.tp-link.com
No excerpt available.
Vendor Advisorywww.tp-link.comJan 21, 2026, 6:16 PM
https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmwarewww.tp-link.com
No excerpt available.
Vendor Advisorywww.tp-link.comJan 21, 2026, 6:16 PM
https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmwarewww.tp-link.com
No excerpt available.
Vendor Advisorywww.tp-link.comJan 21, 2026, 6:16 PM
https://mattg.systems/posts/cve-2026-0834/mattg.systems
No excerpt available.
Permissions Requiredmattg.systemsJan 21, 2026, 6:16 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

CVE-2026-30818
An OS command injection vulnerability in the dnsmasq module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to execute arbitrary code when a specially crafte…
CVSS 8.5 · High
5 mentions
CVE-2026-30817
An external configuration control vulnerability in the OpenVPN module of TP-Link AX53 v1.0 allows an authenticated adjacent attacker to read arbitrary files when a malicious confi…
CVSS 6.8 · Medium
6 mentions
CVE-2026-30816
An external control of configuration vulnerability in the OpenVPN module of TP-Link AX53 v1.0 allows an authenticated adjacent attacker to read arbitrary file when a malicious con…
CVSS 6.8 · Medium
5 mentions
CVE-2026-30815
An OS command injection vulnerability in the OpenVPN module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to execute system commands when a specially craft…
CVSS 8.5 · High
10 mentions
CVE-2026-30814
A stack-based buffer overflow in the tmpServer module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to trigger a segmentation fault and potentially execute…
CVSS 7.3 · High
5 mentions
CVE-2025-15608
This vulnerability in AX53 v1, AX55 v4 and AX55 v4.6 results from insufficient input sanitization in the device’s probe handling logic, where unvalidated parameters can trigger a…
CVSS 7.7 · High
5 mentions

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-0834.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:h:tp-link:archer_ax53Search this product on Shodan
cpe:2.3:o:tp-link:archer_ax53_firmwareSearch this product on Shodan
cpe:2.3:h:tp-link:archer_c20Search this product on Shodan
cpe:2.3:o:tp-link:archer_c20_firmwareSearch this product on Shodan

Exact CVE query

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vuln:CVE-2026-0834Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Unavailable

Published

Jan 21, 2026

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWE IDs

Vendor classifications

How this vector reads

CVSS 4.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Adjacent. The attacker must reach the same or an adjacent network.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Attack Requirements (AT): None. No prerequisite deployment or execution condition is required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): None. Exploitation does not require a targeted user to act.
Vulnerable System Confidentiality (VC): Low. There is a limited impact to this security property.
Vulnerable System Integrity (VI): High. There is a total or serious impact to this security property.
Vulnerable System Availability (VA): High. There is a total or serious impact to this security property.
Subsequent System Confidentiality (SC): None. There is no direct impact to this security property.
Subsequent System Integrity (SI): None. There is no direct impact to this security property.
Subsequent System Availability (SA): None. There is no direct impact to this security property.

Optional CVSS v4 metrics remain in the raw vector; only base metrics are expanded here.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses