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MediumCISA KEVExploited in the wildPublic exploit

Authentication Bypass Information Disclosure in TP-Link TL-WR841N httpd

IdentifiersCVE-2023-50224CWE-306

CVE-2023-50224 is an improper authentication flaw affecting TP-Link TL-WR841N routers. The vulnerability exists in the device's embedded httpd service, which listens on TCP port 80 by default. Due to improper authentication handling, a network-adjacent attacker can send crafted HTTP GET requests without prior authentication and retrieve sensitive information from the router, including stored credentials or keys. Public reporting and government advisories indicate the flaw has been used to obtain router credentials and then facilitate follow-on administrative changes such as modification of DHCP/DNS settings on compromised devices.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows unauthenticated disclosure of sensitive information stored on the router, most notably administrative credentials and related secrets. In observed real-world abuse, attackers used the exposed credentials to gain effective administrative control of affected routers, alter DNS settings, enable DNS hijacking and adversary-in-the-middle operations, intercept traffic, and harvest additional passwords, authentication tokens, emails, and browsing data from downstream users. The vulnerability has been associated with exploitation of legacy SOHO devices in espionage-oriented campaigns.

Mitigation

If you can’t patch tonight, do this now.

If immediate replacement is not possible, install the latest available firmware, disable remote management and other unnecessary services, ensure the management interface is not exposed to untrusted networks, restrict the device to trusted internal network use where feasible, change default and existing administrative credentials, monitor for unauthorized DNS/DHCP configuration changes, and investigate certificate warnings that may indicate adversary-in-the-middle activity. Enabling MFA on downstream accounts can reduce the value of stolen credentials, but does not fix the router flaw itself.

Remediation

Patch, then assume compromise.

Apply TP-Link security updates where available for the affected model and hardware revision. However, multiple reports indicate many affected TP-Link devices tied to CVE-2023-50224 are end-of-life and no longer fully supported, with only limited or partial fixes available for some models. For unsupported devices, the recommended remediation is replacement with a currently supported router or access point that receives regular security updates.
PUBLIC EXPLOITS

Exploits

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VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
TP-LinkTl-Wr841n Firmwareoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence20

Every observed campaign linking this CVE to a named adversary.

Associated malware1

Malware families riding this exploit, with evidence and IOCs.

Detection signatures1

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity38

Community discussion across Reddit, Mastodon, and other social sources.