PT-2026-5264 · Open5Gs · Open5Gs

Frankylin · Published 2026-01-29 · Updated 2026-01-29 · CVE-2026-1587

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 versions up to 2.7.6

Description A flaw exists in Open5GS that can lead to a denial of service. The issue is located in the sgwc s11 handle modify bearer request function within the /sgwc/s11-handler.c file of the SGWC component. This issue can be triggered remotely. The exploit for this issue has been publicly disclosed.

Recommendations Apply a patch to address this vulnerability in versions up to 2.7.6.

Exploit

Fix

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2026-1587

Affected Products

Open5Gs

References · 10

• 🔥 https://github.com/open5gs/open5gs/issues/4272#issue-3795156752 · Exploit
• 🔥 https://vuldb.com/?submit.738376 · Exploit
• https://github.com/open5gs/open5gs/issues/4272#event-21968635948 · Vendor Advisory
• https://github.com/open5gs/open5gs/issues/4272 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-1587 · Security Note
• https://osv.dev/vulnerability/CVE-2026-1587 · Vendor Advisory
• https://github.com/open5gs/open5gs · Note
• https://t.me/cveNotify/150263 · Telegram Post
• https://vuldb.com/?ctiid.343350 · Note
• https://vuldb.com/?id.343350 · Note