Russian state hackers exploit new Microsoft Office flaw in attacks on Ukraine, EU
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-21509 | Local Security Feature Bypass in Microsoft Office Under Active Exploitation | 7.8 | 71% | KEV | KEV |
From the original article
2 min read at therecord.media
Hackers linked to Russia’s military intelligence are exploiting a newly patched flaw in Microsoft Office to target government bodies in Ukraine and other European countries, according to several reports. Ukraine’s computer emergency response team, CERT-UA, said attackers began abusing the flaw — tracked as CVE-2026-21509 — shortly after Microsoft disclosed it in early January.
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