// For flags

CVE-2025-23369

Improper Verification of Cryptographic Signature in GitHub Enterprise Server Allows Signature Spoofing by Improper Validation

Severity Score

6.1
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users. Instances not utilizing SAML single sign-on or where the attacker is not already an existing user were not impacted. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.12.14, 3.13.10, 3.14.7, 3.15.2, and 3.16.0. This vulnerability was reported via the GitHub Bug Bounty program.

*Credits: hakivvi
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
Low
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
High
None
Integrity
Low
None
Availability
Low
None
Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
Low
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
High
None
Integrity
High
None
Availability
Low
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2025-01-14 CVE Reserved
  • 2025-01-21 CVE Published
  • 2025-01-22 EPSS Updated
  • 2025-02-09 First Exploit
  • 2025-02-12 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-347: Improper Verification of Cryptographic Signature
CAPEC
  • CAPEC-475: Signature Spoofing by Improper Validation
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
GitHub
Search vendor "GitHub"
 Enterprise Server
Search vendor "GitHub" for product "Enterprise Server"
 >= 3.12.0 <= 3.12.13
Search vendor "GitHub" for product "Enterprise Server" and version " >= 3.12.0 <= 3.12.13"
en
Affected
GitHub
Search vendor "GitHub"
 Enterprise Server
Search vendor "GitHub" for product "Enterprise Server"
 >= 3.13.0 <= 3.13.9
Search vendor "GitHub" for product "Enterprise Server" and version " >= 3.13.0 <= 3.13.9"
en
Affected
GitHub
Search vendor "GitHub"
 Enterprise Server
Search vendor "GitHub" for product "Enterprise Server"
 >= 3.14.0 <= 3.14.6
Search vendor "GitHub" for product "Enterprise Server" and version " >= 3.14.0 <= 3.14.6"
en
Affected
GitHub
Search vendor "GitHub"
 Enterprise Server
Search vendor "GitHub" for product "Enterprise Server"
 >= 3.15.0 <= 3.15.1
Search vendor "GitHub" for product "Enterprise Server" and version " >= 3.15.0 <= 3.15.1"
en
Affected