PT-2026-36724 · Open5Gs · Open5Gs

Frankylin · Published 2026-05-03 · Updated 2026-05-04 · CVE-2026-7707

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8

Description A remote denial of service issue exists in the UDR component. The problem occurs within the udr nudr dr handle subscription context() function located in the /src/udr/nudr-handler.c file. Manipulation of the pei variable allows a remote attacker to cause a denial of service.

Recommendations As a temporary workaround, restrict access to the udr nudr dr handle subscription context() function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2026-7707

Affected Products

Open5Gs

References · 13

• 🔥 https://github.com/open5gs/open5gs/issues/4410 · Exploit
• 🔥 https://github.com/open5gs/open5gs/issues/4411 · Exploit
• 🔥 https://vuldb.com/submit/805700 · Exploit
• 🔥 https://vuldb.com/submit/805699 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-7707 · Security Note
• https://t.me/CVEtracker/52586 · Telegram Post
• https://twitter.com/infoflowcloud/status/2051085817754321337 · Twitter Post
• https://t.me/cveNotify/161952 · Telegram Post
• https://vuldb.com/vuln/360883/cti · Note
• https://twitter.com/VulmonFeeds/status/2051086198009913575 · Twitter Post
• https://vuldb.com/vuln/360883 · Note
• https://twitter.com/CVEnew/status/2051084369847034319 · Twitter Post
• https://github.com/open5gs/open5gs · Note