PT-2026-39596 · Open5Gs · Open5Gs

Franklin · Published 2026-05-11 · Updated 2026-05-11 · CVE-2026-8289

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

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

Description A flaw in the SMF component allows remote attackers to cause a denial of service. The issue exists within the smf nsmf handle update data in vsmf() function located in the /src/smf/nsmf-handler.c file, where improper manipulation of the qosFlowProfile 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, consider restricting access to the smf nsmf handle update data in vsmf() function to minimize the risk of exploitation.

Exploit

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2026-8289

Affected Products

Open5Gs

References · 10

• 🔥 https://github.com/open5gs/open5gs/issues/4453 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8289.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-8289 · Security Note
• https://osv.dev/vulnerability/CVE-2026-8289 · Vendor Advisory
• https://vuldb.com/submit/808490 · Note
• https://t.me/CVEtracker/53375 · Telegram Post
• https://github.com/open5gs/open5gs · Note
• https://vuldb.com/vuln/362586 · Note
• https://twitter.com/CVEnew/status/2053954481314824692 · Twitter Post
• https://vuldb.com/vuln/362586/cti · Note