PT-2026-36483 · Open5Gs · Open5Gs

Ziyulin · Published 2026-05-01 · Updated 2026-05-01 · CVE-2026-7583

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 flaw in the BSF component allows a remote attacker to cause a denial of service. The issue exists within the bsf sess find by ipv6prefix() function located in the /src/bsf/context.c file, where improper manipulation of the ipv6Prefix argument triggers the condition.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the BSF component or avoid using the ipv6Prefix argument in the bsf sess find by ipv6prefix() function to minimize the risk of exploitation.

Exploit

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2026-7583

Affected Products

Open5Gs

References · 9

• 🔥 https://github.com/open5gs/open5gs/issues/4401 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-7583 · Security Note
• https://github.com/open5gs/open5gs · Note
• https://vuldb.com/vuln/360530 · Note
• https://t.me/CVEtracker/52433 · Telegram Post
• https://vuldb.com/vuln/360530/cti · Note
• https://twitter.com/TheRabbitPy/status/2050236298519093282 · Twitter Post
• https://vuldb.com/submit/804322 · Note
• https://twitter.com/CVEnew/status/2050254031600112083 · Twitter Post