CVE-2026-15194

Open5GS AMF context.c amf_context_final use after free

Assigner: VulDB
Reserved: 09.07.2026 Published: 09.07.2026 Updated: 09.07.2026

A security flaw has been discovered in Open5GS 2.7.7. This affects the function amf_context_final of the file src/amf/context.c of the component AMF. Performing a manipulation results in use after free. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks.

Metrics

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
CVSS Score: 4.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
CVSS Score: 3.3

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
CVSS Score: 3.3

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.0

CVSS Vector: AV:L/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR
CVSS Score: 1.7

Access Vector	Local	Confidentiality Impact	Partial
Access Complexity	Low	Integrity Impact	None
Authentication	Single	Availability Impact	None

CVSS 2.0

Product Status

Vendor	n/a
Product	Open5GS
Versions	Version 2.7.7 is affected

Vendor

n/a

Product

Open5GS

Versions

Version 2.7.7 is affected

Credits

Buggweb (VulDB User) reporter

References

Problem Types