Russia-linked attackers found and exploited a high-severity WinRAR vulnerability before the maintainers of the Windows file archiver issued a fix. The bug, tracked as CVE-2025-8088, is a path-traversal flaw that affects the Windows version of the decompression tool. It received an 8.4 CVSS rating and, according to WinRAR, has been patched in the newest version, 7.13, released on July 31. …
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High-severity WinRAR 0-day exploited for weeks by 2 groups
BI.ZONE said the Paper Werewolf delivered the exploits in July and August through archives attached to emails impersonating employees of the All-Russian Research Institute. The ultimate goal was to install malware that gave Paper Werewolf access to infected systems. While the discoveries by ESET and BI.ZONE were independent of each other, it’s unknown if the groups exploiting the vulnerabilities are …
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