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CVE-2026-41876 is an OS command injection vulnerability in R-SOFT SERWIS DMS affecting the document converter component, specifically the konwertujAction() function. The flaw arises because the application constructs and executes shell commands using unsanitized file path values and format parameters. An authenticated attacker can supply crafted input that is interpreted by the system shell, resulting in arbitrary command execution in the server environment. Affected versions are releases prior to v3.19-2752 and prior to v3.17-2580 in the respective supported branches.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An OS command injection vulnerability in the konwertujAction() function of R-SOFT DMS that allows an authenticated attacker to execute arbitrary system commands as the web server user via unsanitized file paths and format parameters.
An OS command injection vulnerability in the konwertujAction() function of R-SOFT DMS that allows an authenticated attacker to execute arbitrary system commands as the web server user.
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.