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Vulnerability details: VCID-b2r5-fb4m-jbcr
Vulnerability ID VCID-b2r5-fb4m-jbcr
Aliases CVE-2013-2233
GHSA-9x6q-5423-w5v9
PYSEC-2018-36
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-320 Key Management Errors
System Score Found at
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
epss 0.0035 https://api.first.org/data/v1/epss?cve=CVE-2013-2233
cvssv3.1 7.4 https://bugzilla.redhat.com/show_bug.cgi?id=980821
cvssv4 9.1 https://bugzilla.redhat.com/show_bug.cgi?id=980821
generic_textual CRITICAL https://bugzilla.redhat.com/show_bug.cgi?id=980821
cvssv3.1 7.4 https://github.com/advisories/GHSA-9x6q-5423-w5v9
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-9x6q-5423-w5v9
cvssv4 9.1 https://github.com/advisories/GHSA-9x6q-5423-w5v9
generic_textual CRITICAL https://github.com/advisories/GHSA-9x6q-5423-w5v9
cvssv3.1 7.4 https://github.com/ansible/ansible
cvssv4 9.1 https://github.com/ansible/ansible
generic_textual CRITICAL https://github.com/ansible/ansible
cvssv3.1 7.4 https://github.com/ansible/ansible/issues/857
cvssv4 9.1 https://github.com/ansible/ansible/issues/857
generic_textual CRITICAL https://github.com/ansible/ansible/issues/857
cvssv3.1 7.4 https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2018-36.yaml
cvssv4 9.1 https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2018-36.yaml
generic_textual CRITICAL https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2018-36.yaml
cvssv2 5.8 https://nvd.nist.gov/vuln/detail/CVE-2013-2233
cvssv3 7.4 https://nvd.nist.gov/vuln/detail/CVE-2013-2233
cvssv3.1 7.4 https://nvd.nist.gov/vuln/detail/CVE-2013-2233
cvssv4 9.1 https://nvd.nist.gov/vuln/detail/CVE-2013-2233
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2013-2233
cvssv3.1 7.4 https://www.ansible.com/security
cvssv4 9.1 https://www.ansible.com/security
generic_textual CRITICAL https://www.ansible.com/security
cvssv3.1 7.4 http://www.openwall.com/lists/oss-security/2013/07/01/2
cvssv4 9.1 http://www.openwall.com/lists/oss-security/2013/07/01/2
generic_textual CRITICAL http://www.openwall.com/lists/oss-security/2013/07/01/2
cvssv3.1 7.4 http://www.openwall.com/lists/oss-security/2013/07/02/6
cvssv4 9.1 http://www.openwall.com/lists/oss-security/2013/07/02/6
generic_textual CRITICAL http://www.openwall.com/lists/oss-security/2013/07/02/6
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2013-2233
https://bugzilla.redhat.com/show_bug.cgi?id=980821
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2233
https://github.com/advisories/GHSA-9x6q-5423-w5v9
https://github.com/ansible/ansible
https://github.com/ansible/ansible/issues/857
https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2018-36.yaml
https://www.ansible.com/security
http://www.openwall.com/lists/oss-security/2013/07/01/2
http://www.openwall.com/lists/oss-security/2013/07/02/6
714822 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=714822
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
CVE-2013-2233 https://nvd.nist.gov/vuln/detail/CVE-2013-2233
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=980821
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=980821
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/advisories/GHSA-9x6q-5423-w5v9
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/advisories/GHSA-9x6q-5423-w5v9
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/ansible/ansible
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/ansible/ansible
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/ansible/ansible/issues/857
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/ansible/ansible/issues/857
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2018-36.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2018-36.yaml
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

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low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2013-2233
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2013-2233
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2013-2233
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2013-2233
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://www.ansible.com/security
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://www.ansible.com/security
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at http://www.openwall.com/lists/oss-security/2013/07/01/2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at http://www.openwall.com/lists/oss-security/2013/07/01/2
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at http://www.openwall.com/lists/oss-security/2013/07/02/6
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at http://www.openwall.com/lists/oss-security/2013/07/02/6
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.57388
EPSS Score 0.0035
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:41:44.405054+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/ansible/PYSEC-2018-36.yaml 38.0.0