CVE-2025-30378: microsoft microsoft sharepoint enterprise server 2016 Deserialization of Untrusted Data
CVSS: 7.0v3.1HighAnalyzed
Published 13-05-2025Last modified 13-02-2026
Vulnerability summary
CVE-2025-30378 is a high (CVSS 7.0) Deserialization of Untrusted Data vulnerability in microsoft microsoft sharepoint enterprise server 2016. EPSS estimates a 1.42% chance of exploitation in the next 30 days, higher than 72.5% of scored vulnerabilities.
CVSS score
7.0/10
010
High · v3.1 (CVE.org)EPSS score
1.42%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-05-2025PublishedVulnerability first disclosed.
- 13-02-2026Last modifiedVulnerability information updated.
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.0Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.0HighCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.42%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
+0.06 pp
From 1.35% on 21-09-2026
21-09-202621-10-2026
EPSS score1.42%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft4 products
- microsoft sharepoint enterprise server 2016≥ 16.0.0, < 16.0.5500.1001
- microsoft sharepoint server 2019≥ 16.0.0, < 16.0.10417.20010
- microsoft sharepoint server subscription edition≥ 16.0.0, < 16.0.18526.20286
- sharepoint_server< 16.0.18526.20286 | 2016 | 2019
1 vendor · 4 products
