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Old WinRAR Flaw Fuels Attacks on Ukraine: How Unmanaged Software Keeps the Door Open

CVE-2025-8088

June 8, 2026 · Trend Micro · Severity: HIGH

Two separate Russia-aligned campaigns are still exploiting the WinRAR flaw CVE-2025-8088 against Ukrainian organizations nearly a year after it was patched, showing how unmanaged software keeps an exploited entry point open long after the fix ships.

Key Takeaways

  • Two separate Russia-aligned campaigns are still exploiting the WinRAR flaw CVE-2025-8088 against Ukrainian organizations nearly a year after it was patched, showing how unmanaged software keeps an exploited entry point open long after the fix ships.
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