CVE-2026-78156 | Open5GS 2.8.0 S6a Authentication-Information-Request src/hss/hss-s6a-path.c hss_ogs_diam_s6a_air_cb Visited-PLMN-Id heap-based overflow (Issue 4661 / EUVD-2026-64674)

A vulnerability was found in Open5GS 2.8.0 and classified as critical. Affected by this issue is the function hss_ogs_diam_s6a_air_cb of the file src/hss/hss-s6a-path.c of the component S6a Authentication-Information-Request Handler. Such manipulation of the argument Visited-PLMN-Id leads to heap-based buffer overflow. This vulnerability is listed...