{"id":"CVE-2026-1738","summary":"Open5GS SGWC context.c sgwc_tunnel_add assertion","details":"A flaw has been found in Open5GS up to 2.7.6. The impacted element is the function sgwc_tunnel_add of the file /src/sgwc/context.c of the component SGWC. Executing a manipulation of the argument pdr can lead to reachable assertion. The attack can be executed remotely. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.","modified":"2026-08-12T03:51:17.349555366Z","published":"2026-02-02T01:32:07.067Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1738.json","unresolved_ranges":[{"extracted_events":[{"introduced":"2.7.3"},{"last_affected":"2.7.3"},{"introduced":"2.7.4"},{"last_affected":"2.7.4"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"VulDB","cwe_ids":["CWE-617"]},"references":[{"type":"WEB","url":"https://github.com/open5gs/open5gs/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1738.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1738"},{"type":"ADVISORY","url":"https://vuldb.com/?id.343637"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.741193"},{"type":"REPORT","url":"https://github.com/open5gs/open5gs/issues/4261"},{"type":"REPORT","url":"https://github.com/open5gs/open5gs/issues/4261#event-21968563677"},{"type":"REPORT","url":"https://github.com/open5gs/open5gs/issues/4261#issue-3787803578"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.343637"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/open5gs/open5gs","events":[{"introduced":"83e35bb2de7e67646fdba849580184422b10006a"},{"last_affected":"d9d3abdd480be96fac3bc8a997e83446648763ca"}],"database_specific":{"extracted_events":[{"introduced":"2.7.0"},{"last_affected":"2.7.0"},{"introduced":"2.7.1"},{"last_affected":"2.7.1"},{"introduced":"2.7.2"},{"last_affected":"2.7.2"},{"introduced":"2.7.5"},{"last_affected":"2.7.5"},{"introduced":"2.7.6"},{"last_affected":"2.7.6"},{"introduced":"0"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"}}],"versions":["2.7.0","2.7.1","2.7.2","2.7.5","2.7.6","v2.7.6","v2.7.5","v2.7.2","v2.7.1","v2.7.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1738.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS: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"}]}