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CVE-2014-4616
Array index error in the scanstring function in the _json module in Python 2.7 through 3.5 and simplejson before 2.6.1 allows…
- 5.9MediumCVSS base score
- 7.8%Exploitation in 30 daysEPSS · top 5.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Array index error in the scanstring function in the _json module in Python 2.7 through 3.5 and simplejson before 2.6.1 allows context-dependent attackers to read arbitrary process memory via a negative index value in the idx argument to the raw_decode function.
Timeline
ID reserved
By mitre
- 3 years later
· 3 years later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 7.8% · top 5.3% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIsimplejsonGHSA-9772-cwx9-r4cj (opens in a new tab)
References
9
- https://hackerone.com/reports/12297 (opens in a new tab)x_refsource_MISCx_transferred
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=752395 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2015:1064 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 68119 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- openSUSE-SU-2014:0890 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- GLSA-201503-10 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [oss-security] 20140624 Re: CVE request: python: _json module is vulnerable to arbitrary process memory read (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://bugs.python.org/issue21529 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1112285 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-3310 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-9772-cwx9-r4cj (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2014-4616)Record last updated .