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CVE-2026-64879 is a command injection vulnerability affecting Tenable Security Center on Linux. The flaw is present in the audit file upload functionality, where a user-supplied filename is not properly sanitized before being incorporated into system command execution. Because shell metacharacters in the uploaded filename are not safely handled, an attacker with the ability to invoke the upload workflow can inject arbitrary shell syntax and cause unintended commands to execute in the context of the vulnerable application. The issue is classified as CWE-78 and has been assigned a CVSS v3.1 vector of AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H, indicating low attack complexity, no user interaction requirement, and high impact across confidentiality, integrity, and availability.
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6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A command injection vulnerability in Tenable Security Center's audit file upload functionality caused by improper sanitization of an uploaded filename before use in system command execution.
A critical command injection vulnerability in Tenable Security Center addressed by patch SC202607.1.
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.