CVE-2026-1522
MEDIUMopen5gs < 2.7.6 - Denial of Service in SGWC S5C Handler
Title source: llmDescription
A weakness has been identified in Open5GS up to 2.7.6. This vulnerability affects the function sgwc_s5c_handle_modify_bearer_response of the file src/sgwc/s5c-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This patch is called b19cf6a. Applying a patch is advised to resolve this issue. The issue report is flagged as already-fixed.
References (8)
Core 8
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.343193
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.343193
Third Party Advisory, VDB Entry, Exploit third-party-advisory
https://vuldb.com/?submit.738371
Exploit, Issue Tracking, Patch, Vendor Advisory issue-tracking
https://github.com/open5gs/open5gs/issues/4266
Issue Tracking, Patch, Exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4266#event-21968568116
Exploit, Issue Tracking, Patch, Vendor Advisory exploit
issue-tracking
https://github.com/open5gs/open5gs/issues/4266#issue-3794991595
Various Sources product
https://github.com/open5gs/open5gs/
Scores
CVSS v3
5.3
EPSS
0.0066
EPSS Percentile
46.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-404
Status
published
Products (1)
open5gs/open5gs
< 2.7.6
Published
Jan 28, 2026
Tracked Since
Feb 18, 2026