CVE-2026-30058: n/a
Description
CVE-2026-30058 is a high-severity vulnerability in free5gc version 4.0.1, involving improper input validation in the HTTPModifySubscription handler. This flaw allows attackers to cause a denial of service (DoS) by sending crafted inputs. There is no confirmed patch or official remediation available at this time. The vulnerability does not impact confidentiality or integrity but can disrupt service availability.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-30058 affects free5gc v4.0.1 and is due to improper input validation in the HTTPModifySubscription handler. An attacker can exploit this flaw by sending specially crafted inputs to trigger a denial of service condition, causing the affected service to become unavailable. The CVSS v3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability. There is no vendor advisory or patch information currently available, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation results in denial of service, impacting the availability of the free5gc service. There is no impact on confidentiality or integrity. This can disrupt network functions relying on free5gc, potentially affecting service continuity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting access to the HTTPModifySubscription handler to trusted sources and monitor for unusual input patterns targeting this endpoint.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-03-04T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a906baaacd9273b49839a32
Added to database: 08/27/2026, 16:54:02 UTC
Last enriched: 09/07/2026, 15:37:23 UTC
Last updated: 10/11/2026, 18:48:18 UTC
Views: 28
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.
External Links
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.