Search for vulnerabilities
Vulnerability details: VCID-p5ke-xen4-aaaf
Vulnerability ID VCID-p5ke-xen4-aaaf
Aliases CVE-2020-14002
Summary PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client).
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-203 Observable Discrepancy
System Score Found at
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00338 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00387 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00475 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00561 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00746 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.00809 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
epss 0.01097 https://api.first.org/data/v1/epss?cve=CVE-2020-14002
cvssv3.1 5.9 https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
generic_textual MODERATE https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-14002
cvssv3 5.9 https://nvd.nist.gov/vuln/detail/CVE-2020-14002
cvssv3.1 5.9 https://nvd.nist.gov/vuln/detail/CVE-2020-14002
cvssv3.1 5.9 https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
generic_textual MODERATE https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-14002
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14002
https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26TACCSQYYCPWAJYNAUIXJGZ5RGORJZV/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JPV4A77EDCT4BTFO5BE26ZH72BG4E5IJ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/26TACCSQYYCPWAJYNAUIXJGZ5RGORJZV/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JPV4A77EDCT4BTFO5BE26ZH72BG4E5IJ/
https://lists.tartarus.org/pipermail/putty-announce/
https://security.netapp.com/advisory/ntap-20200717-0003/
https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/
cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:*
cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
CVE-2020-14002 https://nvd.nist.gov/vuln/detail/CVE-2020-14002
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
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: AV:N/AC:M/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-14002
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-14002
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-14002
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
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
Exploit Prediction Scoring System (EPSS)
Percentile 0.71876
EPSS Score 0.00338
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.