{"id":"CVE-2021-26305","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-26305","generatedAt":"2026-10-27T23:43:41.812Z","title":"An issue was discovered in Deserializer::read_vec in the cdr crate before 0.2.4 for Rust.","description":"An issue was discovered in Deserializer::read_vec in the cdr crate before 0.2.4 for Rust. A user-provided Read implementation can gain access to the old contents of newly allocated heap memory, violating soundness.","published":"2021-01-29T03:15:12.000Z","lastModified":"2026-06-17T03:43:05.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-908"],"affected":["cdr project/cdr"],"epss":{"score":0.01708,"percentile":0.77157,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2021-0012.html","tags":["Exploit","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://rustsec.org/advisories/RUSTSEC-2021-0012.html","tags":["Exploit","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26305","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}