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
Published Jul 2, 2010
6.9
MEDIUMCVSS 4.0
EPSS 1.67%
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.
Affected products
No data.
- 1.0.5
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.67% (0.01665) | 75.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.67% (0.01665) | 73.61th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.69% (0.00692) | 69.51th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.95% (0.03949) | 80.28th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.52% (0.00521) | 64.90th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.47% (0.00466) | 76.30th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.47% (0.00466) | 74.74th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.47% (0.00466) | 71.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
References (9)
- http://secunia.com/advisories/40335 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/40500 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2010/dsa-2068 vendor-advisoryx_refsource_DEBIAN
- http://www.vupen.com/english/advisories/2010/1774 vdb-entryx_refsource_VUPEN
- https://bugs.launchpad.net/ubuntu/+source/python-cjson/+bug/585274 x_refsource_CONFIRM
- https://github.com/AGProjects/python-cjson/commit/dc2b8781b8666de5ca707318521f554904fdd690
- https://github.com/advisories/GHSA-cqmh-mpx2-g633 Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/python-cjson/PYSEC-2010-30.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2010-1666
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/40335 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://secunia.com/advisories/40500 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.debian.org/security/2010/dsa-2068 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.vupen.com/english/advisories/2010/1774 | vdb-entryx_refsource_VUPEN | |
| https://bugs.launchpad.net/ubuntu/+source/python-cjson/+bug/585274 | x_refsource_CONFIRM | |
| https://github.com/AGProjects/python-cjson/commit/dc2b8781b8666de5ca707318521f554904fdd690 | ||
| https://github.com/advisories/GHSA-cqmh-mpx2-g633 | Advisory | |
| https://github.com/pypa/advisory-database/tree/main/vulns/python-cjson/PYSEC-2010-30.yaml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2010-1666 |
Change history (0)
No recorded changes yet.