PT-2025-17557 · Open5Gs · Open5Gs Upf

Zhenghaohello · Published 2025-04-22 · Updated 2025-04-24 · CVE-2025-29339

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Open5GS UPF versions up to v2.7.2

Description The issue results in an assertion failure vulnerability in PFCP session parameter validation. When processing a PFCP Session Establishment Request with PDN Type = 0, the UPF fails to handle the invalid value, triggering a fatal assertion check and causing a daemon crash.

Recommendations For Open5GS UPF versions up to v2.7.2, update to a version later than v2.7.2 to resolve the issue. As a temporary workaround, consider restricting the PDN Type parameter in the PFCP Session Establishment Request to prevent the assertion failure.

Fix

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

CVE-2025-29339

Affected Products

Open5Gs Upf

References · 7

• https://github.com/open5gs/open5gs/issues/3727 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-29339 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-29339 · Security Note
• https://t.me/cvedetector/23528 · Telegram Post
• https://twitter.com/CVEnew/status/1914734354246312309 · Twitter Post
• https://twitter.com/cybercronai/status/1915277224363634736 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1914836241436094822 · Twitter Post