Security Flaw in Open5GS SGWC Product by Open5GS
CVE-2026-1736

6.9MEDIUM

Key Information:

Vendor

Open5GS

Status
Open5gs
Vendor
CVE Published:
2 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1736?

A security vulnerability exists within the Open5GS SGWC product that affects versions up to 2.7.6. The flaw resides in the function responsible for handling create indirect data forwarding tunnel requests. If successfully exploited, this vulnerability may lead to a reachable assertion, potentially compromising the system's integrity. Attackers could launch this exploit remotely, thereby posing a significant risk to users. A patch has been developed and should be applied immediately to mitigate this issue. The vulnerability has been publicly disclosed, emphasizing the urgency of addressing it.

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Affected Version(s)

Open5GS 2.7.0

Open5GS 2.7.1

Open5GS 2.7.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-1736 - Proof of Concept

References

https://vuldb.com/?id.343635
vdb-entrytechnical-description
https://vuldb.com/?ctiid.343635
signaturepermissions-required
https://vuldb.com/?submit.741191
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LinZiyu (VulDB User)
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