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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_2
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2dfd60b9e2a1bff4a96487a41f88b06019efa6a44a63e37671624b965c130699
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"unaffected","modules":["tddp"],"product":"Archer C20 v6.0, Archer AX53 v1.0","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"V6_251031","status":"affected","version":"0","versionType":"custom"},{"lessThan":"V1_251215","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/affected/0

{"defaultStatus":"unaffected","modules":["tddp"],"product":"Archer C20 V5","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"US_V5_260419","status":"affected","version":"0","versionType":"custom"},{"lessThan":"EU_V5_260317","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"TL-WR841N v13","vendor":"TP Link Systems Inc.","versions":[{"lessThan":"0.9.1 Build 20231120 Rel.62366","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/affected/2

Affected products and versions

3 source assertions
{"defaultStatus":"unaffected","modules":["tddp"],"product":"Archer C20 v6.0, Archer AX53 v1.0","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"V6_251031","status":"affected","version":"0","versionType":"custom"},{"lessThan":"V1_251215","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/affected/0
{"defaultStatus":"unaffected","modules":["tddp"],"product":"Archer C20 V5","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"US_V5_260419","status":"affected","version":"0","versionType":"custom"},{"lessThan":"EU_V5_260317","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"TL-WR841N v13","vendor":"TP Link Systems Inc.","versions":[{"lessThan":"0.9.1 Build 20231120 Rel.62366","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/affected/2

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":7.2,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-290","description":"CWE-290 Authentication Bypass by Spoofing","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"url":"https://mattg.systems/posts/cve-2026-0834/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/references/2
{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/references/1
{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/references/5
{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/references/0
{"tags":["patch"],"url":"https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/references/4
{"tags":["patch"],"url":"https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/references/6
{"tags":["vendor-advisory"],"url":"https://www.tp-link.com/us/support/faq/4905/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acb2f78815e6ab75280aa1dbaca3567e7217970be69b3a440ac3e2cac80f80ed · sha256:28002588188848b7… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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