{"id":"ALPINE-CVE-2025-62291","details":"In the eap-mschapv2 plugin (client-side) in strongSwan before 6.0.3, a malicious EAP-MSCHAPv2 server can send a crafted message of size 6 through 8, and cause an integer underflow that potentially results in a heap-based buffer overflow.","modified":"2026-01-17T11:15:47.874269Z","published":"2026-01-16T19:16:18.163Z","upstream":["CVE-2025-62291"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2025-62291"}],"affected":[{"package":{"name":"strongswan","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/strongswan?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.13-r2"}]}],"versions":["4.5.2-r0","4.6.1-r0","5.1.1-r0","5.1.1-r1","5.1.1-r2","5.1.1-r3","5.1.3-r0","5.2.0-r0","5.2.0-r1","5.2.0-r2","5.2.2-r0","5.3.0-r0","5.3.0-r1","5.3.0-r2","5.3.1-r0","5.3.1-r1","5.3.1-r2","5.3.2-r0","5.3.2-r1","5.3.2-r10","5.3.2-r2","5.3.2-r3","5.3.2-r4","5.3.2-r5","5.3.2-r6","5.3.2-r7","5.3.2-r8","5.3.2-r9","5.3.3-r0","5.3.4-r0","5.3.5-r0","5.3.5-r1","5.3.5-r2","5.4.0-r0","5.4.0-r1","5.5.0-r0","5.5.0-r1","5.5.1-r0","5.5.1-r1","5.5.2-r0","5.5.2-r1","5.5.3-r0","5.5.3-r1","5.6.0-r0","5.6.0-r1","5.6.1-r0","5.6.2-r0","5.6.2-r1","5.6.3-r0","5.6.3-r1","5.6.3-r2","5.7.0-r0","5.7.1-r0","5.7.1-r1","5.7.1-r2","5.7.2-r0","5.7.2-r1","5.8.0-r0","5.8.0-r1","5.8.1-r0","5.8.1-r1","5.8.2-r0","5.8.3-r0","5.8.4-r0","5.8.4-r1","5.8.4-r2","5.9.0-r0","5.9.0-r1","5.9.1-r0","5.9.1-r1","5.9.1-r2","5.9.1-r3","5.9.1-r4","5.9.10-r0","5.9.10-r1","5.9.10-r2","5.9.11-r0","5.9.11-r1","5.9.12-r0","5.9.13-r0","5.9.13-r1","5.9.5-r0","5.9.5-r1","5.9.6-r0","5.9.7-r0","5.9.7-r1","5.9.8-r0","5.9.8-r1","5.9.9-r0","5.9.9-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-62291.json"}},{"package":{"name":"strongswan","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/strongswan?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.14-r1"}]}],"versions":["4.5.2-r0","4.6.1-r0","5.1.1-r0","5.1.1-r1","5.1.1-r2","5.1.1-r3","5.1.3-r0","5.2.0-r0","5.2.0-r1","5.2.0-r2","5.2.2-r0","5.3.0-r0","5.3.0-r1","5.3.0-r2","5.3.1-r0","5.3.1-r1","5.3.1-r2","5.3.2-r0","5.3.2-r1","5.3.2-r10","5.3.2-r2","5.3.2-r3","5.3.2-r4","5.3.2-r5","5.3.2-r6","5.3.2-r7","5.3.2-r8","5.3.2-r9","5.3.3-r0","5.3.4-r0","5.3.5-r0","5.3.5-r1","5.3.5-r2","5.4.0-r0","5.4.0-r1","5.5.0-r0","5.5.0-r1","5.5.1-r0","5.5.1-r1","5.5.2-r0","5.5.2-r1","5.5.3-r0","5.5.3-r1","5.6.0-r0","5.6.0-r1","5.6.1-r0","5.6.2-r0","5.6.2-r1","5.6.3-r0","5.6.3-r1","5.6.3-r2","5.7.0-r0","5.7.1-r0","5.7.1-r1","5.7.1-r2","5.7.2-r0","5.7.2-r1","5.8.0-r0","5.8.0-r1","5.8.1-r0","5.8.1-r1","5.8.2-r0","5.8.3-r0","5.8.4-r0","5.8.4-r1","5.8.4-r2","5.9.0-r0","5.9.0-r1","5.9.1-r0","5.9.1-r1","5.9.1-r2","5.9.1-r3","5.9.1-r4","5.9.10-r0","5.9.10-r1","5.9.10-r2","5.9.11-r0","5.9.11-r1","5.9.12-r0","5.9.13-r0","5.9.13-r1","5.9.14-r0","5.9.5-r0","5.9.5-r1","5.9.6-r0","5.9.7-r0","5.9.7-r1","5.9.8-r0","5.9.8-r1","5.9.9-r0","5.9.9-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-62291.json"}},{"package":{"name":"strongswan","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/strongswan?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.14-r1"}]}],"versions":["4.5.2-r0","4.6.1-r0","5.1.1-r0","5.1.1-r1","5.1.1-r2","5.1.1-r3","5.1.3-r0","5.2.0-r0","5.2.0-r1","5.2.0-r2","5.2.2-r0","5.3.0-r0","5.3.0-r1","5.3.0-r2","5.3.1-r0","5.3.1-r1","5.3.1-r2","5.3.2-r0","5.3.2-r1","5.3.2-r10","5.3.2-r2","5.3.2-r3","5.3.2-r4","5.3.2-r5","5.3.2-r6","5.3.2-r7","5.3.2-r8","5.3.2-r9","5.3.3-r0","5.3.4-r0","5.3.5-r0","5.3.5-r1","5.3.5-r2","5.4.0-r0","5.4.0-r1","5.5.0-r0","5.5.0-r1","5.5.1-r0","5.5.1-r1","5.5.2-r0","5.5.2-r1","5.5.3-r0","5.5.3-r1","5.6.0-r0","5.6.0-r1","5.6.1-r0","5.6.2-r0","5.6.2-r1","5.6.3-r0","5.6.3-r1","5.6.3-r2","5.7.0-r0","5.7.1-r0","5.7.1-r1","5.7.1-r2","5.7.2-r0","5.7.2-r1","5.8.0-r0","5.8.0-r1","5.8.1-r0","5.8.1-r1","5.8.2-r0","5.8.3-r0","5.8.4-r0","5.8.4-r1","5.8.4-r2","5.9.0-r0","5.9.0-r1","5.9.1-r0","5.9.1-r1","5.9.1-r2","5.9.1-r3","5.9.1-r4","5.9.10-r0","5.9.10-r1","5.9.10-r2","5.9.11-r0","5.9.11-r1","5.9.12-r0","5.9.13-r0","5.9.13-r1","5.9.14-r0","5.9.5-r0","5.9.5-r1","5.9.6-r0","5.9.7-r0","5.9.7-r1","5.9.8-r0","5.9.8-r1","5.9.9-r0","5.9.9-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-62291.json"}},{"package":{"name":"strongswan","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/strongswan?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.14-r3"}]}],"versions":["4.5.2-r0","4.6.1-r0","5.1.1-r0","5.1.1-r1","5.1.1-r2","5.1.1-r3","5.1.3-r0","5.2.0-r0","5.2.0-r1","5.2.0-r2","5.2.2-r0","5.3.0-r0","5.3.0-r1","5.3.0-r2","5.3.1-r0","5.3.1-r1","5.3.1-r2","5.3.2-r0","5.3.2-r1","5.3.2-r10","5.3.2-r2","5.3.2-r3","5.3.2-r4","5.3.2-r5","5.3.2-r6","5.3.2-r7","5.3.2-r8","5.3.2-r9","5.3.3-r0","5.3.4-r0","5.3.5-r0","5.3.5-r1","5.3.5-r2","5.4.0-r0","5.4.0-r1","5.5.0-r0","5.5.0-r1","5.5.1-r0","5.5.1-r1","5.5.2-r0","5.5.2-r1","5.5.3-r0","5.5.3-r1","5.6.0-r0","5.6.0-r1","5.6.1-r0","5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