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CVE-2025-69248

26
FAUCET Score

CVE-2025-69248 describes a Buffer Overflow vulnerability in the AMF service of free5GC versions up to and including 1.4.1, an open-source 5G mobile core network project. This flaw allows remote, unauthenticated attackers to trigger a Denial of Service by sending a malformed NAS Registration Request, effectively crashing the AMF service and disrupting the entire 5G core network. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a severe impact on availability with low attack complexity and no user interaction required. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.1CPE matchmatch criteria
cpe:2.3:a:free5gc:amf:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 4.0

6.6MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
UNREPORTED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
43.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 21st percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / free5gc/free5gc/issues/747
ExploitIssue TrackingPatchVendor Advisory
github.com / free5gc/free5gc/security/advisories/GHSA-h6xc-8vvf-jcjp
PatchVendor Advisory
github.com / free5gc/nas/commit/0329a7ac3f314f210366c1b3c33dc29eded4ac5f
Patch
github.com / free5gc/nas/pull/43
Issue TrackingPatch