Is CVE-2017-1000158 in the CISA KEV catalog?

No. CVE-2017-1000158 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-1000158?

CVE-2017-1000158 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-1000158?

CVE-2017-1000158 has an EPSS score of 7.94% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-1000158?

Upgrade python2.7 on debian 11 to 2.7.13-4 or later. Fixes are available for 13 affected products.

CVE & CISA-KEV Catalog

CVE-2017-1000158

CRITICALEPSS 94th pctl

9.8

CVSS v3

NVD

Description

CPython (aka Python) up to 2.7.13 is vulnerable to an integer overflow in the PyString_DecodeEscape function in stringobject.c, resulting in heap-based buffer overflow (and possible arbitrary code execution)

CWE-190Integer Overflow

How to fix

Remediation Available

python2.7Debian

Fixed in:2.7.13-4CVE-2017-1000158

python2.7Ubuntu

Fixed in:2.7.6-8ubuntu0.4USN-3496-1

Fixed in:2.7.12-1ubuntu0~16.04.2USN-3496-1

python2.7-minimalUbuntu

Fixed in:2.7.6-8ubuntu0.4USN-3496-1

Fixed in:2.7.12-1ubuntu0~16.04.2USN-3496-1

python3.4Ubuntu

Fixed in:3.4.3-1ubuntu1~14.04.6USN-3496-3

python3.4-minimalUbuntu

Fixed in:3.4.3-1ubuntu1~14.04.6USN-3496-3

python3.5Ubuntu

Fixed in:3.5.2-2ubuntu0~16.04.4USN-3496-3

python3.5-minimalUbuntu

Fixed in:3.5.2-2ubuntu0~16.04.4USN-3496-3

Python 2Windows application

Affected:3.5.0 3.5.5Fixed in:3.5.5Python Software Foundation

Affected:3.4.0 3.4.8Fixed in:3.4.8Python Software Foundation

Affected:2.7.15Fixed in:2.7.15Python Software Foundation

Python 3.10Windows application

Affected:3.5.0 3.5.5Fixed in:3.5.5Python Software Foundation

Affected:2.7.15Fixed in:2.7.15Python Software Foundation

Affected:3.4.0 3.4.8Fixed in:3.4.8Python Software Foundation

Python 3.11Windows application

Affected:2.7.15Fixed in:2.7.15Python Software Foundation

Affected:3.5.0 3.5.5Fixed in:3.5.5Python Software Foundation

Affected:3.4.0 3.4.8Fixed in:3.4.8Python Software Foundation

Python 3.12Windows application

Affected:2.7.15Fixed in:2.7.15Python Software Foundation

Affected:3.4.0 3.4.8Fixed in:3.4.8Python Software Foundation

Affected:3.5.0 3.5.5Fixed in:3.5.5Python Software Foundation

Python 3.8Windows application

Affected:3.5.0 3.5.5Fixed in:3.5.5Python Software Foundation

Affected:3.4.0 3.4.8Fixed in:3.4.8Python Software Foundation

Affected:2.7.15Fixed in:2.7.15Python Software Foundation

Python 3.9Windows application

Affected:3.5.0 3.5.5Fixed in:3.5.5Python Software Foundation

Affected:3.4.0 3.4.8Fixed in:3.4.8Python Software Foundation

Affected:2.7.15Fixed in:2.7.15Python 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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

7.94%probability of exploitation in 30 days

94thpercentile

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

References

Patch1

bugs.python.org

Third-Party Advisory7

Other references1

security.netapp.com

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	Fix

Embed a live status badge for CVE-2017-1000158

Markdown

[![CVE-2017-1000158](https://tridentstack.com/cve/badge/CVE-2017-1000158.svg)](https://tridentstack.com/cve/CVE-2017-1000158)

HTML

<a href="https://tridentstack.com/cve/CVE-2017-1000158"><img src="https://tridentstack.com/cve/badge/CVE-2017-1000158.svg" alt="CVE-2017-1000158"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.