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CVE-2023-50224

TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability.

Medium Known exploited
Severity
6.5 / 10
Medium · CVSS 3.1
Exploit chance (EPSS)
20.02%
Chance of exploitation in the next 30 days. Higher than 97.44% of scored vulnerabilities.
Known exploited
Yes
In CISA's catalog since Sep 3, 2025
Weakness
CWE-290 Authentication Bypass by Spoofing
Fix
None yet
No fixed version published
Exploited in the wild. TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability (TP-Link TL-WR841N). Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Due for U.S. federal agencies by Sep 24, 2025.

Description

TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR841N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from improper authentication. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-19899.

How to fix

No fixed version has been published yet. Until one is, remove or replace the package, or turn off or isolate the affected feature. This page updates when a fix ships.

Severity breakdown

CVSS 3.1 6.5

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Weakness

CWE-290: Authentication Bypass by Spoofing

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

References

Advisories

Other links

Timeline

  1. Published
  2. Added to CISA's Known Exploited Vulnerabilities catalog
  3. Remediation due for U.S. federal agencies
  4. Last updated by the source
  5. Latest EPSS score
AdvisorySeverityWhy it's related
CVE-2026-102764
The vulnerability exists within internal components of BeyondTrust’s Remote Support product.
Critical Known exploited Same weakness, CWE-290
CVE-2026-104935
Authentication bypass by spoofing in ICS before version 25.1.3.0 allows a remote unauthenticated attacker to execute arbitrary commands.
High Known exploited Same weakness, CWE-290
GHSA-xv7q-fvmc-jx96
Vikunja: OIDC email-fallback account linking ignores email_verified, enabling local-account takeover
High Same weakness, CWE-290
GHSA-9q47-3cm2-2rp8
pyLoad: Rate-Limit Bypass and Audit-Log Spoofing via Trusted Client-Controlled `X-Forwarded-For` Header
Medium Same weakness, CWE-290
GHSA-66wr-7vmr-p5jq
Payload authentication token field handling issue
Critical Same weakness, CWE-290
GHSA-4f6c-2vvp-gw82
Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write
High Same weakness, CWE-290
EEF-CVE-2026-76949
Remember-me sign-in guard reads a session key that is never written in ash_authentication, allowing session replacement
Not rated yet Same weakness, CWE-290
EEF-CVE-2026-91039
dynamic_oidc identities are not namespaced by connection in ash_authentication, allowing cross-connection account takeover
Not rated yet Same weakness, CWE-290
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