{"id":"CVE-2021-44926","aliases":["DEBIAN-CVE-2021-44926","EUVD-2021-31724","GHSA-jxm5-5ch5-jmxc","UBUNTU-CVE-2021-44926"],"status":"published","title":"A null pointer dereference vulnerability exists in the gpac in the gf_node_get_tag function,...","description":"A null pointer dereference vulnerability exists in gpac 1.1.0-DEV in the gf_node_get_tag function, which causes a segmentation fault and application crash.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00634,"percentile":0.50719,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2021-12-21T20:35:22Z","modified":"2026-08-27T23:04:11Z","affected":[{"source":"osv","ecosystem":"Debian:11","package":"gpac","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.1+dfsg1-4","1.0.1+dfsg1-4+deb11u1","1.0.1+dfsg1-4+deb11u2","1.0.1+dfsg1-4+deb11u3","1.0.1+dfsg1-5","2.0.0+dfsg1-1","2.0.0+dfsg1-2","2.0.0+dfsg1-4","2.2.1+dfsg1-1","2.2.1+dfsg1-2","2.2.1+dfsg1-3","2.2.1+dfsg1-3.1","2.2.1+dfsg1-3.1~exp1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"gpac","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.0+svn4288~dfsg1-1ubuntu1","0.5.0+svn4288~dfsg1-4","0.5.0+svn4288~dfsg1-4ubuntu1","0.5.0+svn4288~dfsg1-4ubuntu1+esm1","0.5.0+svn4288~dfsg1-4ubuntu1+esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"gpac","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.2-426-gc5ad4e4+dfsg5-1build1","0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1","0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1+esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"gpac","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.2-426-gc5ad4e4+dfsg5-3","0.5.2-426-gc5ad4e4+dfsg5-3ubuntu0.1","0.5.2-426-gc5ad4e4+dfsg5-3ubuntu0.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"gpac","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.2-426-gc5ad4e4+dfsg5-4ubuntu1","0.5.2-426-gc5ad4e4+dfsg5-5","0.5.2-426-gc5ad4e4+dfsg5-5ubuntu0.1~esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"gpac","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.1+dfsg1-4","1.0.1+dfsg1-5","2.0.0+dfsg1-2","2.0.0+dfsg1-2ubuntu0.1~esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"gpac","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.1+dfsg1-3","2.2.1+dfsg1-3.1","2.2.1+dfsg1-3.1build1","2.2.1+dfsg1-3.1build2","2.2.1+dfsg1-3.1ubuntu0.1~esm2"]}],"products":[{"vendor":"gpac","product":"gpac"}],"references":[{"url":"https://github.com/gpac/gpac/issues/1961","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44926"},{"url":"https://github.com/advisories/GHSA-jxm5-5ch5-jmxc"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-44926","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-44926","tags":["report"]},{"url":"https://github.com/gpac/gpac/commit/f73da86bf32992f62b9ff2b9c9e853e3c97edf8e","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-44926","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-44926","description":"A null pointer dereference vulnerability exists in gpac 1.1.0-DEV in the gf_node_get_tag function, which causes a segmentation fault and application crash.","status":"published","published":"2021-12-21T20:35:22Z","modified":"2024-08-04T04:32:13.299Z","updated_at":"2026-11-02T14:33:01.166399Z"}],"euvd":[{"id":"EUVD-2021-31724","description":"A null pointer dereference vulnerability exists in gpac 1.1.0-DEV in the gf_node_get_tag function, which causes a segmentation fault and application crash.","status":"published","published":"2021-12-21T20:35:22Z","modified":"2024-08-04T04:32:13Z","updated_at":"2026-11-03T03:08:28.023592Z"}],"ghsa":[{"id":"GHSA-jxm5-5ch5-jmxc","title":"A null pointer dereference vulnerability exists in the gpac in the gf_node_get_tag function,...","description":"A null pointer dereference vulnerability exists in the gpac in the gf_node_get_tag function, which causes a segmentation fault and application crash.","status":"published","published":"2021-12-22T00:00:24Z","modified":"2023-02-03T05:03:04Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:53:17.178427Z"}],"nvd":[{"id":"CVE-2021-44926","description":"A null pointer dereference vulnerability exists in gpac 1.1.0-DEV in the gf_node_get_tag function, which causes a segmentation fault and application crash.","status":"published","published":"2021-12-21T21:15:07.847Z","modified":"2026-06-17T04:12:58.927Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:07:02.566991Z"}],"osv":[{"id":"CVE-2021-44926","description":"A null pointer dereference vulnerability exists in gpac 1.1.0-DEV in the gf_node_get_tag function, which causes a segmentation fault and application crash.","status":"published","published":"2021-12-21T21:15:07.847Z","modified":"2026-03-14T11:17:46.34183Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:21.877444Z"},{"id":"DEBIAN-CVE-2021-44926","description":"A null pointer dereference vulnerability exists in gpac 1.1.0-DEV in the gf_node_get_tag function, which causes a segmentation fault and application crash.","status":"published","published":"2021-12-21T21:15:07.847Z","modified":"2026-08-27T23:04:11.982294226Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:35.799676Z"},{"id":"UBUNTU-CVE-2021-44926","description":"A null pointer dereference vulnerability exists in gpac 1.1.0-DEV in the gf_node_get_tag function, which causes a segmentation fault and application crash.","status":"published","published":"2021-12-21T21:15:00Z","modified":"2026-04-22T13:02:44.135082Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:30.277322Z"}]}}