CVE-2019-9894

moderate-risk

Published 2019-03-21

A remotely triggerable memory overwrite in RSA key exchange in PuTTY before 0.71 can occur before host key verification.

Do I need to act?

0.89% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.5/10 High

NETWORK / LOW complexity

Putty

Fedora

Debian Linux

Oncommand Unified Manager

Leap

Debian Putty Fedoraproject Netapp Opensuse

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html

Mailing List https://lists.debian.org/debian-lts-announce/2019/04/msg00023.html

Mailing List https://seclists.org/bugtraq/2019/Apr/6

Patch https://security.netapp.com/advisory/ntap-20190404-0001/

Third Party Advisory https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html

Third Party Advisory https://www.debian.org/security/2019/dsa-4423

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html

Mailing List https://lists.debian.org/debian-lts-announce/2019/04/msg00023.html

Mailing List https://seclists.org/bugtraq/2019/Apr/6

Patch https://security.netapp.com/advisory/ntap-20190404-0001/

Third Party Advisory https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html

Third Party Advisory https://www.debian.org/security/2019/dsa-4423

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moderate-risk

Severity 26/34 · High

Exploitability 3/34 · Minimal

Exposure 14/34 · Moderate