{"id":"JLSEC-2025-229","summary":"Mbed TLS before 3.6.4 has a PEM parsing one-byte heap-based buffer underflow, in...","details":"Mbed TLS before 3.6.4 has a PEM parsing one-byte heap-based buffer underflow, in `mbedtls_pem_read_buffer` and two `mbedtls_pk_parse` functions, via untrusted PEM input.","modified":"2026-07-25T18:23:40.129268400Z","published":"2025-11-21T15:59:04.054Z","upstream":["CVE-2025-52497"],"database_specific":{"sources":[{"modified":"2026-06-17T09:36:36.253Z","published":"2025-07-04T15:15:22.787Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-52497","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52497","database_specific":{"status":"Modified"},"id":"CVE-2025-52497","imported":"2026-07-17T20:47:27.240Z"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-2.md"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html"}],"affected":[{"package":{"name":"MbedTLS_jll","ecosystem":"Julia","purl":"pkg:julia/MbedTLS_jll?uuid=c8ffd9c3-330d-5841-b78e-0817d7145fa1"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.28.1010+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-229.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L"}]}