CVE-2025-53770
KEV
🔴 Łataj teraz
Deserializacja niezaufanych danych w Microsoft SharePoint Server umożliwia zdalne wykonanie kodu.
CVSS
9.8
EPSS
100.0%
Exploit
weaponized
Vendor
microsoft
Opis źródłowy (NVD)
Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is aware that an exploit for CVE-2025-53770 exists in the wild. Microsoft is preparing and fully testing a comprehensive update to address this vulnerability. In the meantime, please make sure that the mitigation provided in this CVE documentation is in place so that you are protected from exploitation.
deserialization exploit
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 9.8 |
| CISA KEV (aktywnie wykorzystywane) | Tak |
| FIRST EPSS (prawdopodobieństwo exploita) | 100.0% |
| Opublikowano (NVD) | 2025-07-20 01:15:30 UTC |
| Ostatnia modyfikacja (NVD) | 2026-08-04 05:16:34 UTC |
Referencje
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53770 (secure@microsoft.com) [Vendor Advisory]
- https://arstechnica.com/security/2025/07/sharepoint-vulnerability-with-9-8-severity-rating-is-under-exploit-across-the-globe/ (af854a3a-2127-422b-91ae-364da2661108) [Exploit, Press/Media Coverage]
- https://github.com/kaizensecurity/CVE-2025-53770 (af854a3a-2127-422b-91ae-364da2661108) [Exploit]
- https://msrc.microsoft.com/blog/2025/07/customer-guidance-for-sharepoint-vulnerability-cve-2025-53770/ (af854a3a-2127-422b-91ae-364da2661108) [Mitigation, Vendor Advisory]
- https://news.ycombinator.com/item?id=44629710 (af854a3a-2127-422b-91ae-364da2661108) [Issue Tracking]
- https://research.eye.security/sharepoint-under-siege/ (af854a3a-2127-422b-91ae-364da2661108) [Exploit, Mitigation, Third Party Advisory]
- https://therecord.media/microsoft-sharepoint-zero-day-vulnerability-exploited-globally (af854a3a-2127-422b-91ae-364da2661108) [Press/Media Coverage]
- https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/ (af854a3a-2127-422b-91ae-364da2661108) [Press/Media Coverage]
- https://www.cisa.gov/news-events/alerts/2025/07/20/microsoft-releases-guidance-exploitation-sharepoint-vulnerability-cve-2025-53770 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Third Party Advisory, US Government Resource]
- https://www.darkreading.com/remote-workforce/microsoft-rushes-emergency-fix-exploited-sharepoint-toolshell-flaw (af854a3a-2127-422b-91ae-364da2661108) [Press/Media Coverage]
- https://www.forbes.com/sites/daveywinder/2025/07/20/microsoft-confirms-ongoing-mass-sharepoint-attack---no-patch-available/ (af854a3a-2127-422b-91ae-364da2661108) [Press/Media Coverage]
- https://x.com/Shadowserver/status/1946900837306868163 (af854a3a-2127-422b-91ae-364da2661108) [Third Party Advisory]
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53770 (134c704f-9b21-4f2e-91b3-4a467353bcc0) [US Government Resource]