{"id":"CVE-2023-46853","aliases":["AZL-31732","AZL-34977","BIT-memcached-2023-46853","DEBIAN-CVE-2023-46853","EUVD-2023-51019","GHSA-jr2m-hrp3-3wj4","ROOT-OS-ALPINE-317-CVE-2023-46853","ROOT-OS-ALPINE-318-CVE-2023-46853","UBUNTU-CVE-2023-46853","USN-6476-1","openSUSE-SU-2024:13427-1"],"status":"published","title":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy...","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","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":0.00881,"percentile":0.59445,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-193"],"published":"2023-10-27T00:00:00Z","modified":"2026-10-28T10:39:10Z","fixes":[{"ecosystem":"Azure Linux:2","package":"memcached","fixed_in":["1.6.22-1"],"sources":["osv"]},{"ecosystem":"Azure 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Linux:2","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.22-1"}]}]},{"source":"osv","ecosystem":"Azure Linux:3","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.27-1"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"memcached","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.6.22"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.18-1+deb12u1"}]}],"versions":["1.6.18-1"]},{"source":"osv","ecosystem":"Debian:13","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.22-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.22-1"}]}]},{"source":"osv","ecosystem":"Root:Alpine:3.17","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.17-r00071"},{"fixed":"1.6.17-r00072"},{"fixed":"1.6.17-r00073"},{"fixed":"1.6.17-r00074"},{"fixed":"1.6.17-r00075"}]}]},{"source":"osv","ecosystem":"Root:Alpine:3.17","package":"rootio-memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.17-r00071"},{"fixed":"1.6.17-r00072"},{"fixed":"1.6.17-r00073"},{"fixed":"1.6.17-r00074"},{"fixed":"1.6.17-r00075"}]}]},{"source":"osv","ecosystem":"Root:Alpine:3.18","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.21-r00071"},{"fixed":"1.6.21-r00073"},{"fixed":"1.6.21-r00072"},{"fixed":"1.6.21-r00074"},{"fixed":"1.6.21-r00075"}]}]},{"source":"osv","ecosystem":"Root:Alpine:3.18","package":"rootio-memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.21-r00071"},{"fixed":"1.6.21-r00073"},{"fixed":"1.6.21-r00072"},{"fixed":"1.6.21-r00074"},{"fixed":"1.6.21-r00075"}]}]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.14-1ubuntu0.1"}]}],"versions":["1.6.9+dfsg-1build1","1.6.12+dfsg-2ubuntu1","1.6.12+dfsg-3","1.6.12+dfsg-4","1.6.13-1","1.6.14-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.14-1ubuntu0.1"}]}],"versions":["1.6.9+dfsg-1build1","1.6.12+dfsg-2ubuntu1","1.6.12+dfsg-3","1.6.12+dfsg-4","1.6.13-1","1.6.14-1"],"bundled":2},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.22-1.1"}]}],"bundled":2}],"products":[{"vendor":"memcached","product":"memcached"}],"references":[{"url":"https://github.com/memcached/memcached/compare/1.6.21...1.6.22","tags":["x_transferred","Release Notes","article","web"]},{"url":"https://github.com/memcached/memcached/commit/6987918e9a3094ec4fc8976f01f769f624d790fa","tags":["x_transferred","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46853","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-jr2m-hrp3-3wj4"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46853.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-46853","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-46853","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6476-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-46853","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-46852","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2023-46852","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-46853","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2023-46853","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2023-10-27T00:00:00Z","modified":"2024-09-09T15:31:32.16Z","updated_at":"2026-11-02T14:35:23.309349Z"}],"euvd":[{"id":"EUVD-2023-51019","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2023-10-27T00:00:00Z","modified":"2024-09-09T15:31:32Z","updated_at":"2026-11-03T00:56:00.719005Z"}],"ghsa":[{"id":"GHSA-jr2m-hrp3-3wj4","title":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy...","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2023-10-27T21:30:23Z","modified":"2023-11-16T05:04:26Z","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-193"],"updated_at":"2026-11-02T14:55:02.891904Z"}],"nvd":[{"id":"CVE-2023-46853","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2023-10-27T20:15:09.177Z","modified":"2026-06-17T06:31:46.177Z","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"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T14:08:40.004465Z"}],"osv":[{"id":"AZL-31732","title":"CVE-2023-46853 affecting package memcached for versions less than 1.6.22-1","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2023-10-27T20:15:09Z","modified":"2026-04-21T04:26:29.308868Z","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":"2026-11-02T15:28:03.46006Z"},{"id":"AZL-34977","title":"CVE-2023-46853 affecting package memcached for versions less than 1.6.27-1","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2023-10-27T20:15:09Z","modified":"2026-04-21T04:50:32.94748Z","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":"2026-11-02T15:28:03.821827Z"},{"id":"DEBIAN-CVE-2023-46853","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2023-10-27T20:15:09.177Z","modified":"2026-10-26T18:02:42.325478614Z","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":"2026-11-02T15:45:40.275853Z"},{"id":"UBUNTU-CVE-2023-46853","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2023-10-27T20:15:00Z","modified":"2026-02-04T04:06:02.283561Z","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":"2026-11-02T16:54:23.935133Z"},{"id":"BIT-memcached-2023-46853","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2024-11-08T19:13:57.572Z","modified":"2026-09-08T08:48:13.277444717Z","updated_at":"2026-11-02T15:28:33.072289Z"},{"id":"CVE-2023-46853","description":"In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \\n is used instead of \\r\\n.","status":"published","published":"2023-10-27T00:00:00Z","modified":"2026-10-28T10:39:10.56473463Z","updated_at":"2026-11-02T15:44:34.287121Z"},{"id":"openSUSE-SU-2024:13427-1","title":"memcached-1.6.22-1.1 on GA media","description":"These are all security issues fixed in the memcached-1.6.22-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:12:41.688371Z","updated_at":"2026-11-02T16:58:36.327643Z"},{"id":"ROOT-OS-ALPINE-317-CVE-2023-46853","title":"CVE-2023-46853 in memcached - Patched by Root","description":"Root has patched CVE-2023-46853 in the memcached package for Root:Alpine:3.17. Multiple fixed versions available.","status":"published","published":"2026-09-29T09:23:21Z","modified":"2026-09-29T10:15:40.549703249Z","updated_at":"2026-11-02T15:53:28.259095Z"},{"id":"ROOT-OS-ALPINE-318-CVE-2023-46853","title":"CVE-2023-46853 in memcached - Patched by Root","description":"Root has patched CVE-2023-46853 in the memcached package for Root:Alpine:3.18. Multiple fixed versions available.","status":"published","published":"2026-09-29T10:03:48Z","modified":"2026-09-29T11:15:04.431402716Z","updated_at":"2026-11-02T15:53:28.259095Z"},{"id":"USN-6476-1","title":"memcached vulnerabilities","description":"It was discovered that Memcached incorrectly handled certain multiget\nrequests in proxy mode. A remote attacker could use this issue to cause\nMemcached to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2023-46852)\n\nIt was discovered that Memcached incorrectly handled certain proxy requests\nin proxy mode. A remote attacker could use this issue to cause Memcached to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2023-46853)\n","status":"published","published":"2023-11-13T15:26:54Z","modified":"2026-02-10T04:43:25Z","updated_at":"2026-11-02T16:58:17.305935Z"}]}}