{"cve":"CVE-2012-4929","nvd":{"published":"2012-09-15T18:55:03.187","modified":"2026-06-16T23:45:55.193","status":"Modified","description":"The TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, Qt, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows man-in-the-middle attackers to obtain plaintext HTTP headers by observing length differences during a series of guesses in which a string in an HTTP request potentially matches an unknown string in an HTTP header, aka a \"CRIME\" attack.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://arstechnica.com/security/2012/09/crime-hijacks-https-sessions/","http://code.google.com/p/chromium/issues/detail?id=139744","http://isecpartners.com/blog/2012/9/14/details-on-the-crime-attack.html","http://jvn.jp/en/jp/JVN65273415/index.html","http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000129.html"],"products":["debian:debian_linux","google:chrome","mozilla:firefox"],"source":"nvd","synced_at":"2026-10-19T20:25:53.526315492+00:00"},"epss":{"cve":"CVE-2012-4929","score":0.04346,"percentile":0.91223,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}