Loading vulnerability…
CVE-2026-21643 is a critical unauthenticated SQL injection vulnerability in Fortinet FortiClient Enterprise Management Server (EMS). The flaw affects FortiClient EMS 7.4.4, with broader reporting indicating exposure across the 7.4.0 through 7.4.5 branch prior to remediation. The issue stems from improper neutralization of attacker-controlled input used during HTTP request processing, specifically in middleware that handles multitenant context selection via the Site header before establishing the backend database context. Technical analysis indicates user-supplied input is incorporated into PostgreSQL search_path handling without sufficient sanitization, enabling pre-authentication SQL injection through crafted HTTP requests. Successful exploitation can progress beyond database manipulation and result in unauthorized command or code execution on the underlying server, making the flaw effectively a remote code execution path on exposed EMS deployments. The vulnerability has been reported as actively exploited 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 3 candidates 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.
158 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A specific vulnerability listed among the report's analyzed CVEs, but without further detail in the content.
A critical SQL injection vulnerability in Fortinet FortiClient Enterprise Management Server (EMS) that was patched and later flagged as actively exploited.
A FortiClient EMS vulnerability mentioned as being under active exploitation during the same period as the FortiBleed campaign; no further technical details are provided in the content.
A critical SQL injection vulnerability in Fortinet FortiClient Enterprise Management Server (EMS) that was patched and later flagged as actively exploited.
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.