CVE & CISA-KEV Catalog

CVE-2014-4616

MEDIUMEPSS 94th pctl
5.9
CVSS v3
NVD

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.

CWE-129

How to fix

Remediation Available
python2.7Debian
Fixed in:2.7.7-1CVE-2014-4616
python2.7Ubuntu
Fixed in:2.7.6-8ubuntu0.2USN-2653-1
python2.7-minimalUbuntu
Fixed in:2.7.6-8ubuntu0.2USN-2653-1
python3.4Ubuntu
Fixed in:3.4.0-2ubuntu1.1USN-2653-1
python3.4-minimalUbuntu
Fixed in:3.4.0-2ubuntu1.1USN-2653-1
Python 2Windows application
Affected:2.7.0 2.7.7Fixed in:2.7.7Python Software Foundation
Affected:3.3.0 3.3.6Fixed in:3.3.6Python Software Foundation
Affected:3.4.0 3.4.1Fixed in:3.4.1Python Software Foundation
Affected:3.0.0 3.2.6Fixed in:3.2.6Python Software Foundation
Python 3.10Windows application
Affected:2.7.0 2.7.7Fixed in:2.7.7Python Software Foundation
Affected:3.3.0 3.3.6Fixed in:3.3.6Python Software Foundation
Affected:3.0.0 3.2.6Fixed in:3.2.6Python Software Foundation
Affected:3.4.0 3.4.1Fixed in:3.4.1Python Software Foundation
Python 3.11Windows application
Affected:3.4.0 3.4.1Fixed in:3.4.1Python Software Foundation
Affected:3.3.0 3.3.6Fixed in:3.3.6Python Software Foundation
Affected:3.0.0 3.2.6Fixed in:3.2.6Python Software Foundation
Affected:2.7.0 2.7.7Fixed in:2.7.7Python Software Foundation
Python 3.12Windows application
Affected:3.0.0 3.2.6Fixed in:3.2.6Python Software Foundation
Affected:2.7.0 2.7.7Fixed in:2.7.7Python Software Foundation
Affected:3.3.0 3.3.6Fixed in:3.3.6Python Software Foundation
Affected:3.4.0 3.4.1Fixed in:3.4.1Python Software Foundation
Python 3.8Windows application
Affected:3.0.0 3.2.6Fixed in:3.2.6Python Software Foundation
Affected:2.7.0 2.7.7Fixed in:2.7.7Python Software Foundation
Affected:3.3.0 3.3.6Fixed in:3.3.6Python Software Foundation
Affected:3.4.0 3.4.1Fixed in:3.4.1Python Software Foundation
Python 3.9Windows application
Affected:3.4.0 3.4.1Fixed in:3.4.1Python Software Foundation
Affected:3.3.0 3.3.6Fixed in:3.3.6Python Software Foundation
Affected:3.0.0 3.2.6Fixed in:3.2.6Python Software Foundation
Affected:2.7.0 2.7.7Fixed in:2.7.7Python Software Foundation

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

8.13%probability of exploitation in 30 days
94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Vendor Advisory1
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.