Loading vulnerability…
CVE-2024-40890 is a post-authentication command injection vulnerability in the CGI program of legacy Zyxel DSL CPE firmware affecting Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615. An authenticated attacker can send a crafted HTTP POST request to the device’s web management interface and inject operating system commands for execution on the underlying system. Reporting around the issue also associates exploitation with privileged service accounts such as supervisor or zyuser and indicates the flaw is part of a broader set of actively exploited Zyxel CPE command-injection issues affecting end-of-life devices. Successful exploitation results in arbitrary OS command execution on the appliance and can lead to full compromise of the device.
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.
No public exploits tracked yet. Mallory keeps watching.
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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical Zyxel CPE command injection vulnerability that can allow a remote authenticated attacker to execute commands and gain full control of the system via specially crafted HTTP POST requests.
A similar HTTP-based command injection vulnerability related to Zyxel devices, referenced for comparison with CVE-2024-40891.
A command injection vulnerability in Zyxel CPE diagnostic interface that could allow remote code execution.
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.