An issue in the ModifyAMFEventSubscriptionProcedure function (processor/event_exposure.go) of free5gc v4.1.0 allows attackers to cause a Denial of… (CVE-2026-30050)
Description
A vulnerability in free5gc version 4.1.0 exists in the ModifyAMFEventSubscriptionProcedure function, which allows attackers to cause a Denial of Service (DoS) by sending a crafted PATCH request. This issue results in service disruption without impacting confidentiality or integrity.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The ModifyAMFEventSubscriptionProcedure function in free5gc v4.1.0 contains a flaw that can be triggered by a specially crafted PATCH request. Exploiting this vulnerability leads to a Denial of Service condition, impacting availability. The vulnerability is identified as CWE-770 (Allocation of Resources Without Limits or Throttling). The CVSS v3.1 base score is 7.5, indicating a high severity with network attack vector, no privileges required, and no user interaction needed.
Potential Impact
Successful exploitation causes Denial of Service, disrupting the availability of the free5gc service. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided at this time. Users should monitor vendor communications for updates and consider implementing request filtering or rate limiting on PATCH requests as a temporary mitigation.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jp2q-f37p-ww5q
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-30050"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a91a872acd9273b49069c16
Added to database: 08/28/2026, 15:25:38 UTC
Last enriched: 09/08/2026, 04:22:33 UTC
Last updated: 10/13/2026, 18:48:19 UTC
Views: 57
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.