PT-2026-5263 · Open5Gs · Open5Gs

Frankylin · Published 2026-01-29 · Updated 2026-02-02 · CVE-2026-1586

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 prior to 2.7.6

Description A flaw exists in Open5GS up to version 2.7.5 that can lead to a denial of service. The issue is located in the SGWC component, specifically within the ogs gtp2 f teid to ip function of the /sgwc/s11-handler.c file. This issue can be exploited remotely through manipulation. An exploit for this issue has been published.

Recommendations Apply a patch to correct this issue.

Exploit

Fix

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2026-1586

Affected Products

Open5Gs

References · 11

• 🔥 https://github.com/open5gs/open5gs/issues/4273#issue-3796030721 · Exploit
• 🔥 https://vuldb.com/?submit.738375 · Exploit
• https://github.com/open5gs/open5gs/issues/4273 · Vendor Advisory
• https://github.com/open5gs/open5gs/issues/4273#event-21968643659 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-1586 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-1586 · Security Note
• https://t.me/poxek/5867 · Telegram Post
• https://t.me/cveNotify/150262 · Telegram Post
• https://github.com/open5gs/open5gs · Note
• https://vuldb.com/?ctiid.343349 · Note
• https://vuldb.com/?id.343349 · Note