What’s Vulnerable › Vulnerabilities

CVE-2024-34476

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-05 · updated 2026-06-17
• Weakness: CWE-805

Description

Open5GS before 2.7.1 is vulnerable to a reachable assertion that can cause an AMF crash via NAS messages from a UE: ogs_nas_encrypt in lib/nas/common/security.c for pkbuf->len.

Affected products

• Open5GS: before 2.7.1 — fixed in 2.7.1

How to fix

Upgrade to a fixed version: Open5GS 2.7.1. Check the vendor advisory for mitigations.

References

• https://github.com/open5gs/open5gs/compare/v2.7.0...v2.7.1
• https://github.com/open5gs/open5gs/pull/3122
• https://github.com/open5gs/open5gs/compare/v2.7.0...v2.7.1
• https://github.com/open5gs/open5gs/pull/3122

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