CVE-2026-12001

MEDIUMPre-NVD 5.25.2
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.2 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 84% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:tplink, epss
Trending — 4 sources updated this week
5.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.2Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A hardcoded credential vulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, Archer C20 v6 & Archer MR200 v5).  Authentication-related credential material is embedded within a password file in the firmware image and may be recovered through firmware analysis.

Successful exploitation could result in unauthorized access to privileged functions on affected devices.

CVSS v3
5.2
EG Score
5.2(medium)
EG Risk
23(Track)
EG Risk 23/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity52% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

July 27, 2026

Last Modified

July 28, 2026

Advisory Details (9)

Auto-updated Jul 27, 2026
No patch confirmed yet.
generic

Security Advisory: Hardcoded Credential Vulnerability in Multiple TP-Link Router Models (CVE-2026-12001)

https://www.tp-link.com/us/support/faq/5210/
generic

Download for TL-WR850N | TP-Link India

https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware
generic

Download for TL-WR845N | TP-Link India

https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware
generic

Download for Archer C20 | TP-Link India

https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware
generic

Download for Archer MR200 | TP-Link India

https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware

Vendor Advisories for CVE-2026-12001(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 11× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-28 21:03 UTCEG score recompute
  2. 2026-07-28 21:02 UTCGHSA enrichment
  3. 2026-07-28 16:30 UTCEG score recompute
  4. 2026-07-28 16:30 UTCGHSA enrichment
  5. 2026-07-28 15:36 UTCEG score recompute
  6. 2026-07-28 15:36 UTCGHSA enrichment
  7. 2026-07-28 15:36 UTCEPSS rescore
  8. 2026-07-27 21:36 UTCEG score recompute
  9. 2026-07-27 21:35 UTCGHSA enrichment
  10. 2026-07-27 20:26 UTCEG score recompute
  11. 2026-07-27 20:24 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-12001?
CVE-2026-12001 is a medium vulnerability published on July 27, 2026. A hardcoded credential vulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, Archer C20 v6 & Archer MR200 v5). Authentication-related credential material is embedded within a password file in the firmware image and may be recovered through firmware analysis.…
When was CVE-2026-12001 disclosed?
CVE-2026-12001 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12001 actively exploited?
CVE-2026-12001 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 84.2% of all scored CVEs.
What is the CVSS score of CVE-2026-12001?
CVE-2026-12001 has a CVSS v4.0 base score of 5.2 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-12001?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12001, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-12001

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