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Vulnerability Details :

CVE-2025-69248

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-23 Feb, 2026 | 21:42
Updated At-25 Feb, 2026 | 15:32
Rejected At-
Credits

free5GC has Array Index Out of Bounds in AMF Leading to Denial of Service

free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of free5GC's AMF service have a Buffer Overflow vulnerability leading to Denial of Service. Remote unauthenticated attackers can crash the AMF service by sending a specially crafted NAS Registration Request with a malformed 5GS Mobile Identity, causing complete denial of service for the 5G core network. All deployments of free5GC using the AMF component may be affected. Pull request 43 of the free5gc/nas repo contains a fix. No direct workaround is available at the application level. Applying the official patch is recommended.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:23 Feb, 2026 | 21:42
Updated At:25 Feb, 2026 | 15:32
Rejected At:
▼CVE Numbering Authority (CNA)
free5GC has Array Index Out of Bounds in AMF Leading to Denial of Service

free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of free5GC's AMF service have a Buffer Overflow vulnerability leading to Denial of Service. Remote unauthenticated attackers can crash the AMF service by sending a specially crafted NAS Registration Request with a malformed 5GS Mobile Identity, causing complete denial of service for the 5G core network. All deployments of free5GC using the AMF component may be affected. Pull request 43 of the free5gc/nas repo contains a fix. No direct workaround is available at the application level. Applying the official patch is recommended.

Affected Products
Vendor
free5gc
Product
amf
Versions
Affected
  • <= 1.4.1
Problem Types
TypeCWE IDDescription
CWECWE-129CWE-129: Improper Validation of Array Index
Type: CWE
CWE ID: CWE-129
Description: CWE-129: Improper Validation of Array Index
Metrics
VersionBase scoreBase severityVector
4.06.6MEDIUM
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
Version: 4.0
Base score: 6.6
Base severity: MEDIUM
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/free5gc/free5gc/security/advisories/GHSA-h6xc-8vvf-jcjp
x_refsource_CONFIRM
https://github.com/free5gc/free5gc/issues/747
x_refsource_MISC
https://github.com/free5gc/nas/pull/43
x_refsource_MISC
https://github.com/free5gc/nas/commit/0329a7ac3f314f210366c1b3c33dc29eded4ac5f
x_refsource_MISC
Hyperlink: https://github.com/free5gc/free5gc/security/advisories/GHSA-h6xc-8vvf-jcjp
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/free5gc/free5gc/issues/747
Resource:
x_refsource_MISC
Hyperlink: https://github.com/free5gc/nas/pull/43
Resource:
x_refsource_MISC
Hyperlink: https://github.com/free5gc/nas/commit/0329a7ac3f314f210366c1b3c33dc29eded4ac5f
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:23 Feb, 2026 | 22:16
Updated At:25 Feb, 2026 | 16:35

free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of free5GC's AMF service have a Buffer Overflow vulnerability leading to Denial of Service. Remote unauthenticated attackers can crash the AMF service by sending a specially crafted NAS Registration Request with a malformed 5GS Mobile Identity, causing complete denial of service for the 5G core network. All deployments of free5GC using the AMF component may be affected. Pull request 43 of the free5gc/nas repo contains a fix. No direct workaround is available at the application level. Applying the official patch is recommended.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.06.6MEDIUM
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
Primary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 4.0
Base score: 6.6
Base severity: MEDIUM
Vector:
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
Type: Primary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CPE Matches

free5gc
free5gc
>>amf>>Versions up to 1.4.1(inclusive)
cpe:2.3:a:free5gc:amf:*:*:*:*:*:go:*:*
Weaknesses
CWE IDTypeSource
CWE-129Secondarysecurity-advisories@github.com
CWE ID: CWE-129
Type: Secondary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/free5gc/free5gc/issues/747security-advisories@github.com
Exploit
Issue Tracking
Patch
Vendor Advisory
https://github.com/free5gc/free5gc/security/advisories/GHSA-h6xc-8vvf-jcjpsecurity-advisories@github.com
Patch
Vendor Advisory
https://github.com/free5gc/nas/commit/0329a7ac3f314f210366c1b3c33dc29eded4ac5fsecurity-advisories@github.com
Patch
https://github.com/free5gc/nas/pull/43security-advisories@github.com
Issue Tracking
Patch
Hyperlink: https://github.com/free5gc/free5gc/issues/747
Source: security-advisories@github.com
Resource:
Exploit
Issue Tracking
Patch
Vendor Advisory
Hyperlink: https://github.com/free5gc/free5gc/security/advisories/GHSA-h6xc-8vvf-jcjp
Source: security-advisories@github.com
Resource:
Patch
Vendor Advisory
Hyperlink: https://github.com/free5gc/nas/commit/0329a7ac3f314f210366c1b3c33dc29eded4ac5f
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/free5gc/nas/pull/43
Source: security-advisories@github.com
Resource:
Issue Tracking
Patch

Change History

0
Information is not available yet

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