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CVE-2022-26210 is a command injection vulnerability in the setUpgradeFW firmware-upgrade function of TOTOLINK routers. A crafted FileName parameter allows attackers to execute arbitrary operating-system commands remotely. Affected models and firmware versions are A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R V4.1.2cu.5137_B20200730, A3000RU V5.9c.5185_B20201128, and A810R V4.1.2cu.5182_B20201026. The vulnerability has been exploited for botnet propagation, including by Zerobot, Wszero, and RustoBot.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A security flaw in TOTOLINK devices that is being exploited by the RustoBot botnet to conduct DDoS attacks.
A command-injection vulnerability in TOTOLINK routers’ cstecgi.cgi (setUpgradeFW) functionality that can be exploited to achieve remote code execution, used to deploy the RustoBot botnet.
A command injection vulnerability in the setUpgradeFW function of TOTOLINK's cstecgi.cgi script. The report describes attackers exploiting it to execute commands remotely and deliver the Rust-based RustoBot botnet malware.
Unknown
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.