CVE & CISA-KEV Catalog

CVE-2013-2233

HIGHEPSS 79th pctl
7.4
CVSS v3
NVD

Description

Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.

How to fix

Remediation Available
ansibleDebian
Fixed in:1.3.4+dfsg-1CVE-2013-2233
Fixed in:1.3.4+dfsg-1CVE-2013-2233
Fixed in:1.3.4+dfsg-1CVE-2013-2233

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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
IntegrityHigh
AvailabilityNone

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

1.93%probability of exploitation in 30 days
79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Vendor Advisory1
Issue Tracking1

Related Vulnerabilities

Other CWE-320 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2015-0936Critical9.878%--
CVE-2018-0732High7.549%-Fix
CVE-2015-0839High8.16.3%-Fix
CVE-2018-0124Critical9.85.1%-Fix
CVE-2016-9963Medium5.93.1%-Fix
CVE-2016-2217Medium5.32.5%-Fix

Common questions

How do I fix CVE-2013-2233?

Upgrade ansible on debian 12 to 1.3.4+dfsg-1 or later.

Is CVE-2013-2233 being actively exploited?

Not that we know of. CVE-2013-2233 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.9% is the estimated probability that it will be exploited in the next 30 days. That is higher than 79% of all scored CVEs.

How severe is CVE-2013-2233?

CVE-2013-2233 has a CVSS v3 base score of 7.4, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2013-2233 affect?

Published advisories record a fix for ansible (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2013-2233 severity badge

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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 2026-06-16.