CVE-2024-21426: Microsoft SharePoint Server Remote Code Execution Vulnerability
Analyzed
Published 12-03-2024Last modified 03-05-2025
Vulnerability summary
CVE-2024-21426 is a high (CVSS 7.8) Use After Free vulnerability in microsoft microsoft sharepoint enterprise server 2016. EPSS estimates a 3.90% chance of exploitation in the next 30 days, higher than 90.2% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
3.90%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 12-03-2024PublishedVulnerability first disclosed.
- 03-05-2025Last modifiedVulnerability information updated.
Description
Microsoft SharePoint Server Remote Code Execution Vulnerability
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
3.90%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.90% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft4 products
- microsoft sharepoint enterprise server 2016≥ 16.0.0, < 16.0.5439.1000
- microsoft sharepoint server 2019≥ 16.0.0, < 16.0.10408.20000
- microsoft sharepoint server subscription edition≥ 16.0.0, < 16.0.17328.20136
- sharepoint_serverna | 2016 | 2019
1 vendor · 4 products
