CVE-2025-69250

MEDIUM EPSS 31.7%
Published Feb 24, 20264mo ago · Modified Jun 17, 20261w ago
6.6 CVSS 4.0
Medium
Find Similar
Published Feb 24, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, the service reliably leaks detailed internal error messages (e.g., strconv.ParseInt parsing errors) to remote clients when processing invalid pduSessionId inputs. This exposes implementation details and can be used for service fingerprinting. All deployments of free5GC using the UDM Nudm_UECM DELETE service may be vulnerable. free5gc/udm pull request 76 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.

CVSS Details

Base Score
6.6
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
31.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-20 Improper Input Validation Validation
CWE-754

Affected Products 1

VendorProductVersionRange
free5gcudm* ≤1.4.1

References 4

  • github.com https://github.com/free5gc/free5gc/issues/750
    ExploitIssue TrackingVendor Advisory
  • github.com https://github.com/free5gc/free5gc/security/advisories/GHSA-6w77-5pqh-83rm
    PatchVendor Advisory
  • github.com https://github.com/free5gc/udm/commit/504b14458d156558b3c0ade7107b86b3d5e72998
    Patch
  • github.com https://github.com/free5gc/udm/pull/76
    Issue TrackingPatch

Remediation

  • github.com https://github.com/free5gc/free5gc/security/advisories/GHSA-6w77-5pqh-83rm
    PatchVendor Advisory
  • github.com https://github.com/free5gc/udm/commit/504b14458d156558b3c0ade7107b86b3d5e72998
    Patch
  • github.com https://github.com/free5gc/udm/pull/76
    Issue TrackingPatch