CVE-2026-55007

highCVSS 8.1covered by 5 sourcesfirst seen 2026-09-08

Ein Angreifer kann mehrere Schwachstellen in Microsoft Exchange Server ausnutzen, um beliebigen Code auszuführen, Spoofing-Angriffe durchzuführen, erweiterte Berechtigungen zu erlangen, Daten zu manipulieren oder offenzulegen sowie einen Denial-of-Service-Angriff zu verursachen.

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Exploitation outlook

Low exploitation risk0.73% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 52% of all EPSS-scored CVEs.

Advisory coverage (5)

high[NEU] [hoch] Microsoft Exchange Server: Mehrere Schwachstellencert-bund · 2026-09-09
unknownMultiples vulnérabilités dans les produits Microsoft (09 septembre 2026)cert-fr-avis · 2026-09-09
unknownNCSC-2026-0349 [1.00] [M/H] Kwetsbaarheden verholpen in Microsoft Exchange serverncsc-nl · 2026-09-08
highCVE-2026-55007: Double free in Microsoft Exchange Server allows an unauthorized attacker to execute code over …nvd · 2026-09-08
highCVE-2026-55007: Microsoft Exchange Server Remote Code Execution Vulnerabilitymsrc · 2026-09-08

External references

NVD record for CVE-2026-55007

CVE.org record

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