{"id":"CVE-2023-26463","aliases":["ALPINE-CVE-2023-26463","AZL-26300","DEBIAN-CVE-2023-26463","EUVD-2023-30283","GHSA-vcx9-7pcc-q8c7","openSUSE-SU-2024:12749-1"],"status":"published","title":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable...","description":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02264,"percentile":0.8315,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295","CWE-476"],"published":"2023-04-14T00:00:00Z","modified":"2026-10-28T02:30:50Z","fixes":[{"ecosystem":"Alpine:v3.17","package":"strongswan","fixed_in":["5.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"strongswan","fixed_in":["5.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"strongswan","fixed_in":["5.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"strongswan","fixed_in":["5.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"strongswan","fixed_in":["5.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"strongswan","fixed_in":["5.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"strongswan","fixed_in":["5.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"strongswan","fixed_in":["5.9.10-r0"],"sources":["osv"]},{"ecosystem":"Azure Linux:2","package":"strongswan","fixed_in":["5.9.10-1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"strongswan","fixed_in":["5.9.8-4"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"strongswan","fixed_in":["5.9.8-4"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"strongswan","fixed_in":["5.9.8-4"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"strongswan","fixed_in":["5.9.10-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.17","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-r0"}]}]},{"source":"osv","ecosystem":"Azure Linux:2","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.8-4"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.8-4"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.8-4"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"strongswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.10-1.1"}]}]}],"products":[{"vendor":"strongswan","product":"strongswan"}],"references":[{"url":"https://github.com/strongswan/strongswan/releases","tags":["x_transferred","Release Notes","package"]},{"url":"https://www.strongswan.org/blog/2023/03/02/strongswan-vulnerability-%28cve-2023-26463%29.html","tags":["x_transferred","Mitigation","Vendor Advisory","article"]},{"url":"https://security.netapp.com/advisory/ntap-20230517-0010/","tags":["x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26463","tags":["web","advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20230517-0010"},{"url":"https://github.com/advisories/GHSA-vcx9-7pcc-q8c7"},{"url":"https://security.alpinelinux.org/vuln/CVE-2023-26463","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26463.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-26463","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2023-26463","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2023-26463","description":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.","status":"published","published":"2023-04-14T00:00:00Z","modified":"2025-02-13T16:44:54.99Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-476","CWE-295"],"updated_at":"2026-11-02T14:35:15.434947Z"}],"euvd":[{"id":"EUVD-2023-30283","description":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.","status":"published","published":"2023-04-14T00:00:00Z","modified":"2025-02-13T16:44:54Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:03:50.947767Z"}],"ghsa":[{"id":"GHSA-vcx9-7pcc-q8c7","title":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable...","description":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.","status":"published","published":"2023-04-15T00:30:35Z","modified":"2024-04-04T03:28:57Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:56:15.423381Z"}],"nvd":[{"id":"CVE-2023-26463","description":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.","status":"published","published":"2023-04-15T00:15:07.487Z","modified":"2026-06-17T05:43:23.28Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-295","CWE-476"],"updated_at":"2026-11-02T14:07:55.652109Z"}],"osv":[{"id":"ALPINE-CVE-2023-26463","description":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.","status":"published","published":"2023-04-15T00:15:07.487Z","modified":"2026-10-26T17:17:58.613796223Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:27:49.202584Z"},{"id":"AZL-26300","title":"CVE-2023-26463 affecting package strongswan for versions less than 5.9.10-1","description":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.","status":"published","published":"2023-04-15T00:15:07Z","modified":"2026-04-21T04:23:36.386516Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:28:03.093433Z"},{"id":"CVE-2023-26463","description":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.","status":"published","published":"2023-04-14T00:00:00Z","modified":"2026-10-28T02:30:50.532353977Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:31.135751Z"},{"id":"DEBIAN-CVE-2023-26463","description":"strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.","status":"published","published":"2023-04-15T00:15:07.487Z","modified":"2026-10-26T18:00:39.060036978Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:39.369204Z"},{"id":"openSUSE-SU-2024:12749-1","title":"strongswan-5.9.10-1.1 on GA media","description":"These are all security issues fixed in the strongswan-5.9.10-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:35:17.322269Z","updated_at":"2026-11-02T16:58:35.751245Z"}]}}