CVE-2020-14002
MEDIUM
5.9
CVSS Score
Published: June 29, 2020 at 12:00 AM UTC
Updated: June 17, 2026 at 02:54 AM UTC
3 products affected across 3 vendorsFedoraPuTTYOncommand Unified Manager Core Package
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Severity
MEDIUM5.9
Exploit prediction
EPSS 3%
Description
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).
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (7)
Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20200717-0003/Release NotesThird Party Advisory
Source: [email protected]
https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.htmlx_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/CVSS
- Attack Vector
- NETWORK
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-203
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