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 occurs within the bsf sess find by ipv6prefix() function located in the /src/bsf/context.c file, triggered by the manipulation of the ipv6Prefix argument.

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 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 · 8

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