PT-2026-5590 · Open5Gs · Open5Gs

Linziyu · Published 2026-02-02 · Updated 2026-02-02 · CVE-2026-1737

Positive Technologies · (AI Summary)

CVSS v3.1

5.3

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Open5GS versions up to 2.7.6

Description A flaw exists in Open5GS, specifically within the

sgwc s5c handle create bearer request

function located in the

/src/sgwc/s5c-handler.c

file, part of the CreateBearerRequest Handler component. Manipulation of input can trigger a reachable assertion. Remote exploitation is possible. The issue is reported as already fixed and the exploit is publicly available.

Recommendations Deploy a patch to address this issue.

Exploit

Fix

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

CVE-2026-1737

Affected Products

Open5Gs

References · 11

• 🔥 https://github.com/open5gs/open5gs/issues/4271#issue-3795147720 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-1737 · Security Note
• https://github.com/open5gs/open5gs/issues/4271#event-21968630023 · Note
• https://github.com/open5gs/open5gs/issues/4271 · Note
• https://vuldb.com/?id.343636 · Note
• https://twitter.com/VulmonFeeds/status/2018151467962515888 · Twitter Post
• https://vuldb.com/?ctiid.343636 · Note
• https://github.com/open5gs/open5gs · Note
• https://vuldb.com/?submit.741192 · Note
• https://t.me/CVEtracker/43441 · Telegram Post
• https://t.me/cveNotify/150524 · Telegram Post