Loading vulnerability…
CVE-2022-24355 is a stack-based buffer overflow in TP-Link TL-WR940N routers, affecting at least firmware 3.20.1 Build 200316 Rel.34392n (5553). The flaw exists in the httpd component, specifically the httpRpmFs functionality, during parsing of file name extensions. User-supplied data is copied into a fixed-length stack buffer without proper validation of input length, allowing an overlong extension value to overflow the stack. The issue is reachable by a network-adjacent attacker and does not require authentication. Successful exploitation can result in arbitrary code execution as root.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a small, single-purpose exploit repo containing one Python exploit script and a short README. The main file, CVE-2022-24355.py, is a pwntools-based remote code execution exploit for TP-Link WR841 v10 targeting CVE-2022-24355. It sets pwntools context for a 32-bit big-endian MIPS target, defines hardcoded ROP gadgets and function/string addresses, generates MIPS shellcode, and embeds the resulting payload into an HTTP Cookie header. The exploit sends a raw HTTP GET request to /loginFs/passwd on 192.168.0.1:80 with Host and Referer headers also pointing to 192.168.0.1. After triggering the overflow/control-flow hijack, it waits briefly, then connects to a bind shell on port 4444 and drops into interactive mode. The shellcode uses a listen socket on 4444, dup2 redirection for standard streams, and system('/bin/sh') for command execution. The exploit is operational rather than a simple detector because it includes a complete payload and post-exploitation connection logic, but it is not highly generalized: target IP, ports, gadget addresses, and runtime assumptions are hardcoded, indicating firmware/version specificity. The README only identifies the target and labels the code as a proof of concept.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Buffer overflow in TP-Link TL-WR940N that was exploitable for remote code execution due to weak binary mitigations.
Buffer overflow in TP-Link TL-WR940N cited as an example of an exploitable router vulnerability leading to remote code execution.
A TP-Link router vulnerability described as unauthenticated with public exploits (at least for WR940N and WR841N), assessed in the content as the most straightforward candidate for 7777-Botnet infections of older TP-Link models.
A TP-Link router vulnerability considered the most plausible 7777-Botnet infection vector for several older TP-Link models because it is unauthenticated and has public exploits.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.