Is CVE-2010-1666 being actively exploited?

CVE-2010-1666 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2010-1666?

CVE-2010-1666 has a CVSS 2.0 base score of 6.8 (MEDIUM).

CVE-2010-1666

MEDIUM · CVSS 6.8EPSS 1.7%EU EUVD

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.

Key facts

CVSS score: 6.8 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-119
EPSS score: 1.7% (77th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2010-0029)
Published: July 2, 2010
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2010-0029 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

dan pascu / python-cjson

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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