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CVE-2020-14002

MEDIUMCVSS 5.9/10EPSS 3.12%

Last modified

CVE-2020-14002 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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).. EPSS estimates a 3.12% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1
5.9/10

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

EPSS Probability
3.12%

86.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PuttyPutty>= 0.68, <= 0.73
NetappOncommand Unified Manager Core PackageAll versions
FedoraprojectFedora31
FedoraprojectFedora32

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-14002?
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).
How severe is CVE-2020-14002?
CVE-2020-14002 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 3.12% probability of exploitation in the next 30 days.
How do I fix CVE-2020-14002?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-14002?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST