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Vulnerability record · CVE-2019-9898 · published 21 March 2019

CVE-2019-9898: Putty vulnerability

Putty · Putty

Potential recycling of random numbers used in cryptography exists within PuTTY before 0.71.

9.8 CVSS 3.0 Critical EPSS 3.9% · top 10.0% CWE-330 · CWE-330
9.8CVSS 3.0 base score, v2 7.5
3.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

Description

Potential recycling of random numbers used in cryptography exists within PuTTY before 0.71.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/107523 Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2019/04/msg00023.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36LWQ3NPFIV7DC7TC4KFPRY
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LDO3F267P347E6U2IILFCYW
https://seclists.org/bugtraq/2019/Apr/6 Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20190329-0002/ Broken Link
https://security.netapp.com/advisory/ntap-20190401-0002/ PatchThird Party Advisory
https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html Third Party Advisory
https://www.debian.org/security/2019/dsa-4423 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/107523 Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2019/04/msg00023.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36LWQ3NPFIV7DC7TC4KFPRY
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LDO3F267P347E6U2IILFCYW
https://seclists.org/bugtraq/2019/Apr/6 Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20190329-0002/ Broken Link
https://security.netapp.com/advisory/ntap-20190401-0002/ PatchThird Party Advisory
https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html Third Party Advisory
https://www.debian.org/security/2019/dsa-4423 Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-9898), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.