CVE-2022-43635 Information disclosure in TL-WR940N
Network-adjacent attackers can exploit an authentication flaw in the httpd service to disclose stored credentials on TP-Link routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-43635?
CVE-2022-43635 is a medium-severity vulnerability in TP-Link TL-WR940N, published on 29 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR940N 6_211111 3.20.1(US) 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 the incorrect implementation of the authentication algorithm. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-17332.
Weakness: CWE-303
Which versions are affected by CVE-2022-43635?
It affects 1 product.
Products include Tp-Link Tl-Wr940n Firmware.
How do I fix CVE-2022-43635?
No fix has been published for CVE-2022-43635 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-43635 being exploited?
There is no known exploitation of CVE-2022-43635 in the wild and no public exploit code.
Other vulnerabilities in TP-Link TL-WR940N
- CVE-2023-36355 Memory corruption in n/a
- CVE-2022-24355 Memory corruption in TL-WR940N
- CVE-2019-6989 Memory corruption in n/a
- CVE-2026-11409 OS Command Injection in IPv6 PPPoE Configuration in TP-Link TL-WR940N
- CVE-2026-11410 OS Command Injection in BigPond Cable (BPA) Configuration in TP-Link TL-WR940N
Sources
Also known as GHSA-44h9-27pc-757g.