Loading vulnerability…
CVE-2024-40891 is a post-authentication command injection vulnerability in the management commands of the legacy Zyxel VMG4325-B10A DSL CPE firmware version 1.00(AAFR.4)C0_20170615. An authenticated attacker with access to the device over Telnet can inject operating system commands through the management interface, causing attacker-controlled input to be executed by the underlying OS. The issue affects an end-of-life device line and has been associated with active exploitation in the wild.
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 valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Critical vulnerability in Zyxel CPE Series devices enabling arbitrary command execution; reported as under active exploitation attempts.
Unknown (the content only notes that Zyxel CPE devices are impacted, without describing the vulnerability type or impact).
A vulnerability affecting Zyxel CPE devices referenced as flagged by Shadowserver.
A previously disclosed unpatched telnet command injection vulnerability in Zyxel CPE devices, mentioned as part of Zyxel's security history.
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.