CVE-2026-1521

MEDIUM 5.3

Open5GS SGWC s5c-handler.c denial of service

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

A security flaw has been discovered in Open5GS up to 2.7.6. This affects the function sgwc_s5c_handle_bearer_resource_failure_indication of the file src/sgwc/s5c-handler.c of the component SGWC. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The patch is named 69b53add90a9479d7960b822fc60601d659c328b. It is recommended to apply a patch to fix this issue.

CWE	CWE-404
Vendor	n/a
Product	open5gs
Published	Jan 28, 2026
Last Updated	Feb 23, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / Open5GS

2.7.0 2.7.1 2.7.2 2.7.3 2.7.4 2.7.5 2.7.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.343192 vuldb.com: https://vuldb.com/?ctiid.343192 vuldb.com: https://vuldb.com/?submit.738370 github.com: https://github.com/open5gs/open5gs/issues/4268 github.com: https://github.com/open5gs/open5gs/issues/4268#event-21989483261 github.com: https://github.com/open5gs/open5gs/issues/4268#issue-3795012861 github.com: https://github.com/open5gs/open5gs/commit/69b53add90a9479d7960b822fc60601d659c328b github.com: https://github.com/open5gs/open5gs/

Credits

🔍 LinZiyu (VulDB User)