{"id":"CVE-2021-35944","aliases":["EUVD-2021-22579","GHSA-7vvj-xvcf-6h4f"],"status":"published","title":"Couchbase Server 6.5.x, 6.6.x through 6.6.2, and 7.0.0 has a Buffer Overflow. A specially crafted...","description":"Couchbase Server 6.5.x, 6.6.x through 6.6.2, and 7.0.0 has a Buffer Overflow. A specially crafted network packet sent from an attacker can crash memcached.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01093,"percentile":0.65711,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2021-09-29T19:26:33Z","modified":"2026-06-17T03:57:58Z","products":[{"vendor":"couchbase","product":"couchbase_server"}],"references":[{"url":"https://docs.couchbase.com/server/current/release-notes/relnotes.html","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://www.couchbase.com/alerts","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35944"},{"url":"https://github.com/advisories/GHSA-7vvj-xvcf-6h4f"}],"sources":{"cve":[{"id":"CVE-2021-35944","description":"Couchbase Server 6.5.x, 6.6.x through 6.6.2, and 7.0.0 has a Buffer Overflow. A specially crafted network packet sent from an attacker can crash memcached.","status":"published","published":"2021-09-29T19:26:33Z","modified":"2024-08-04T00:40:47.372Z","updated_at":"2026-11-02T14:33:09.864034Z"}],"euvd":[{"id":"EUVD-2021-22579","description":"Couchbase Server 6.5.x, 6.6.x through 6.6.2, and 7.0.0 has a Buffer Overflow. A specially crafted network packet sent from an attacker can crash memcached.","status":"published","published":"2021-09-29T19:26:33Z","modified":"2024-08-04T00:40:47Z","updated_at":"2026-11-03T03:24:30.441845Z"}],"ghsa":[{"id":"GHSA-7vvj-xvcf-6h4f","title":"Couchbase Server 6.5.x, 6.6.x through 6.6.2, and 7.0.0 has a Buffer Overflow. A specially crafted...","description":"Couchbase Server 6.5.x, 6.6.x through 6.6.2, and 7.0.0 has a Buffer Overflow. A specially crafted network packet sent from an attacker can crash memcached.","status":"published","published":"2022-05-24T19:16:01Z","modified":"2023-01-30T05:02:28Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:46:38.945282Z"}],"nvd":[{"id":"CVE-2021-35944","description":"Couchbase Server 6.5.x, 6.6.x through 6.6.2, and 7.0.0 has a Buffer Overflow. A specially crafted network packet sent from an attacker can crash memcached.","status":"published","published":"2021-09-29T20:15:08.37Z","modified":"2026-06-17T03:57:58.67Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:06:59.314106Z"}]}}