{"cve":"CVE-2010-1666","nvd":{"published":"2010-07-02T19:00:00.910","modified":"2026-06-16T23:18:49.093","status":"Modified","description":"Buffer overflow in Dan Pascu python-cjson 1.0.5, when UCS-4 encoding is enabled, allows context-dependent attackers to cause a denial of service (application crash) or possibly have unspecified other impact via vectors involving crafted Unicode input to the cjson.encode function.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://secunia.com/advisories/40335","http://secunia.com/advisories/40500","http://www.debian.org/security/2010/dsa-2068","http://www.vupen.com/english/advisories/2010/1774","https://bugs.launchpad.net/ubuntu/+source/python-cjson/+bug/585274"],"products":["dan_pascu:python-cjson"],"source":"nvd","synced_at":"2026-10-19T19:56:26.512081652+00:00"},"epss":{"cve":"CVE-2010-1666","score":0.01665,"percentile":0.76733,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-cqmh-mpx2-g633","url":"https://osv.dev/vulnerability/GHSA-cqmh-mpx2-g633","summary":"Improper Restriction of Operations within the Bounds of a Memory Buffer in python-cjson","modified":"2024-10-15T17:00:54.813578Z","packages":[{"ecosystem":"PyPI","name":"python-cjson","purl":"pkg:pypi/python-cjson","ranges":["<1.0.5.1"],"fixed":["1.0.5.1"]}]},{"id":"PYSEC-2010-30","url":"https://osv.dev/vulnerability/PYSEC-2010-30","summary":"","modified":"2023-11-08T03:56:55.969118Z","packages":[{"ecosystem":"PyPI","name":"python-cjson","purl":"pkg:pypi/python-cjson","ranges":["<1.1.0"],"fixed":["1.1.0"]}]}],"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."]}