Vulnerability Monitor

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CVE-2026-2517

A security flaw has been discovered in Open5GS up to 2.7.6. This vulnerability affects the function ogs_gtp2_parse_tft in the library lib/gtp/v2/types.c of the component SMF. Performing a manipulation of the argument pf[0].content.length results in denial of service. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and limited availability for affected systems. Impacting 1 product from open5gs organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2026-02-15T13:16:16.690

Last Modified

2026-02-18T20:48:40.650

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-404

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	open5gs	open5gs	≤ 2.7.6	Yes

References

https://github.com/open5gs/open5gs/ Product ([email protected])
https://github.com/open5gs/open5gs/issues/4281 Exploit, Issue Tracking, Vendor Advisory ([email protected])
https://github.com/open5gs/open5gs/issues/4281#issue-3807802287 Exploit, Issue Tracking, Vendor Advisory ([email protected])
https://vuldb.com/?ctiid.346108 Permissions Required, VDB Entry ([email protected])
https://vuldb.com/?id.346108 Third Party Advisory, VDB Entry ([email protected])
https://vuldb.com/?submit.738332 Third Party Advisory, VDB Entry ([email protected])

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For open5gs's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.