01 Record
CVE-2013-3900
WinVerifyTrust Signature Validation Vulnerability
MediumKEVPUBLISHEDCNA: microsoft
CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
02 Description
WinVerifyTrust Signature Validation Vulnerability
03 Exploitation and scoring
- Exploitation
- Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2022-01-10. Federal remediation due 2022-07-10.
- SSVC decision
- ExploitationactiveCISA reports credible evidence of active exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 44.64% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 98.6% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-07.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2013-12-11 00:00Z12 YR AGO
- Last updated
- 2026-10-08 16:32Z20 DAYS AGO
- Reserved
- 2013-06-03
- Assigning CNA
- microsoft
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.5)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
- Weaknesses
- CWE-347Improper Verification of Cryptographic SignatureBase
- Data version
- 5.2
- Document digest
- bd86daf977b9829e4f889b0bb031b346a03296a2e29ffa53de239307da6c8b1a
05 Affected products
VendorProductVersionsPlatforms
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation)Not specified32-bit Systems, x64-based Systems
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation)Not specifiedx64-based Systems
06 References
- msrc.microsoft.comWinVerifyTrust Signature Validation Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2013-3900
- docs.microsoft.comMS13-098https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-098
- blogs.technet.comhttp://blogs.technet.com/b/srd/archive/2013/12/10/ms13-098-update-to-enhance-the-security-of-authenticode.aspx
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3900