CVE-2010-1666

CVE-2010-1666 is a medium-severity vulnerability in Dan Pascu Python-cjson with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

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.

Frequently asked questions

What is CVE-2010-1666?
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.
How severe is CVE-2010-1666?
CVE-2010-1666 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2010-1666 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1666?
CVE-2010-1666 affects Dan Pascu Python-cjson. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-1666?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-1666 published?
CVE-2010-1666 was published on 2010-07-02 and last updated on 2026-06-16.

References

Affected products (1)

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