{"id":"UBUNTU-CVE-2025-62689","details":"NULL pointer dereference vulnerability exists in GNU libmicrohttpd v1.0.2 and earlier. The vulnerability was fixed in commit ff13abc on the master branch of the libmicrohttpd Git repository, after the v1.0.2 tag. A specially crafted packet sent by an attacker could cause a denial-of-service (DoS) condition.","modified":"2026-05-20T16:23:39.817821404Z","published":"2025-11-10T05:15:00Z","upstream":["CVE-2025-62689"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-62689"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-62689"},{"type":"REPORT","url":"https://git.gnunet.org/libmicrohttpd.git/commit/?id=ff13abc1c1d7d2b30d69d5c0bd4a237e1801c50b"},{"type":"REPORT","url":"https://jvn.jp/en/jp/JVN76719218/"},{"type":"REPORT","url":"https://www.gnu.org/software/libmicrohttpd/"}],"affected":[{"package":{"name":"libmicrohttpd","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libmicrohttpd?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.27-2","0.9.32-1","0.9.33-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmicrohttpd10","binary_version":"0.9.33-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-62689.json"}},{"package":{"name":"libmicrohttpd","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libmicrohttpd?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.37+dfsg-1ubuntu1","0.9.42+dfsg-2","0.9.44+dfsg-1","0.9.44+dfsg-1ubuntu1","0.9.44+dfsg-1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmicrohttpd10","binary_version":"0.9.44+dfsg-1ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-62689.json"}},{"package":{"name":"libmicrohttpd","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libmicrohttpd?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.55-1","0.9.57-1","0.9.58-1","0.9.59-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmicrohttpd12","binary_version":"0.9.59-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-62689.json"}},{"package":{"name":"libmicrohttpd","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libmicrohttpd?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.66-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.9.66-1","binary_name":"libmicrohttpd12"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-62689.json"}},{"package":{"name":"libmicrohttpd","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libmicrohttpd?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.72-2","0.9.73-4","0.9.75-1","0.9.75-3","0.9.75-3ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmicrohttpd12","binary_version":"0.9.75-3ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-62689.json"}},{"package":{"name":"libmicrohttpd","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libmicrohttpd?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.75-6ubuntu1","1.0.0-2ubuntu1","1.0.0-2.1ubuntu1","1.0.0-2.1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0.0-2.1ubuntu2","binary_name":"libmicrohttpd12t64"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-62689.json"}},{"package":{"name":"libmicrohttpd","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libmicrohttpd?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmicrohttpd12t64","binary_version":"1.0.1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-62689.json"}},{"package":{"name":"libmicrohttpd","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libmicrohttpd?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.1-2","1.0.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmicrohttpd12t64","binary_version":"1.0.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-62689.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}