CVE-2023-50224 — TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

CISA required action CISA

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

US federal deadline: Sep 24, 2025 — passed 386 day(s) ago

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

1. Identify exposed assets running the affected vendor/product/version combinations (TP-Link Systems Inc. Archer C1900 Firmware, TP-Link Systems Inc. Archer C5, TP-Link Systems Inc. Archer C5 Firmware…).
2. Treat as emergency remediation: the CVE is in CISA KEV (confirmed exploitation).
3. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
4. EPSS ahead of 97% of scored CVEs: prioritize it in the patch queue.
5. Search available logs for exploit probes matching the vulnerability class (authentication), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-290 · Authentication Bypass by Spoofing

Other CVEs with this weakness →

CISA KEV details CISA

CISA lists a CVE once it has evidence of exploitation against real targets.

CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a reference date.

EPSS over time FIRST

Oct 12, 2026 → Oct 14, 2026 · 3 reading(s) · max 20.02%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

• Review authentication logs: logins without MFA, anomalous sessions and recently created accounts.
• Hunt retroactively in logs from before Sep 3, 2025 (KEV listing): exploitation may have started earlier.

Timeline

What happened to this CVE, newest first.

• 2026
• Affected products added · tp-link/tl-wr841n, tp-link/tl-wr841nd, tp-link/tl-mr6400, tp-link/archer c5, tp-link/archer c7, tp-link/tl-wdr3600, tp-l
  Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
• SSVC assessment updated
  Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
• Record published
  Oct 13, 2026
• Affected products added · tp-link/tl-wr841n firmware, tp-link/mr6400 firmware, tp-link/tl-wdr3600 firmware, tp-link/tl-wdr4300 firmware, tp-link/w
  Oct 13, 2026 · NIST National Vulnerability Database
• CVSS changed · 6.5
  Oct 13, 2026 · NIST National Vulnerability Database
• Source status changed · → Analyzed
  Oct 13, 2026 · NIST National Vulnerability Database
• Added to CISA KEV (detected)
  Oct 13, 2026 · CISA Known Exploited Vulnerabilities
• Record created in this database
  Oct 13, 2026 · CISA Known Exploited Vulnerabilities
• 2025
• Added to CISA KEV catalog
  Sep 2, 2025 · CISA
• 2024
• CVE published
  May 3, 2024 · zdi

Source activity

Repeated readings are counted rather than listed.

• 2× References added · Oct 13, 2026 – Oct 13, 2026
• 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

8 on the record

• www.tp-link.com/us/support/faq/5058/
  Vendor Advisory, vendor-advisory, NIST National Vulnerability Database
• www.cisa.gov/known-exploited-vulnerabilities-catalog
  US Government Resource, NIST National Vulnerability Database
• www.zerodayinitiative.com/advisories/ZDI-23-1808
  GitHub Security Advisories
• www.tp-link.com/us/support/faq/5058
  GitHub Security Advisories
• github.com/advisories/GHSA-g654-hw9f-49w6
  GitHub Security Advisories
• nvd.nist.gov/vuln/detail/CVE-2023-50224
  GitHub Security Advisories
• www.tp-link.com/en/support/download/tl-wr841n/v12/
  Product, vendor-advisory, NIST National Vulnerability Database
• www.zerodayinitiative.com/advisories/ZDI-23-1808/
  Third Party Advisory, x_research-advisory, NIST National Vulnerability Database

Elsewhere on this site

Related CVEs (same products)

• Medium CVE-2026-9105 Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface Jun 29, 2026
• High CVE-2026-5039 Predictable Default Cryptographic Key Used for DES Encryption in TP-Link TL-WL841N Apr 23, 2026
• High CVE-2026-3622 Denial-of-Service Vulnerability in UPnP Component of TP Link's TL-WR841N Mar 26, 2026
• Medium CVE-2026-3227 Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N Mar 16, 2026
• High CVE-2025-9014 Null Pointer Dereference Vulnerability on TL-WR841N Jan 15, 2026
• High CVE-2025-9377 TP-Link Archer C7(EU) and TL-WR841N/ND(MS) OS Command Injection Vulnerability KEV Aug 29, 2025

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

• No fixed version, patch or mitigation documented.
• No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
• No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
• No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2023-50224 is "TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability", rated Medium. It affects Archer C1900 Firmware (TP-Link Systems Inc.); versions are in the scope table. It is in CISA KEV: there is evidence of real-world exploitation. CVSS 6.5 describes technical severity. EPSS 20.02% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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