CVE-2026-2517 | THREATINT

Description

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.

PUBLISHED Reserved 2026-02-14 | Published 2026-02-15 | Updated 2026-02-23 | Assigner VulDB

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

5.0AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Denial of Service

Timeline

2026-02-14:	Advisory disclosed
2026-02-14:	VulDB entry created
2026-02-19:	VulDB entry last update

Credits

LinZiyu (VulDB User) reporter

References

vuldb.com/?id.346108 (VDB-346108 | Open5GS SMF types.c ogs_gtp2_parse_tft denial of service) vdb-entry technical-description

vuldb.com/?ctiid.346108 (VDB-346108 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.738332 (Submit #738332 | Open5GS SMF v2.7.6 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4281 issue-tracking

github.com/open5gs/open5gs/issues/4281 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-2517)

nvd.nist.gov (CVE-2026-2517)

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