What is CVE-2019-9898?

CVE-2019-9898 is a critical vulnerability published on March 21, 2019. Potential recycling of random numbers used in cryptography exists within PuTTY before 0.71.

When was CVE-2019-9898 disclosed?

CVE-2019-9898 was first published in the National Vulnerability Database on March 21, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-9898 actively exploited?

CVE-2019-9898 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 89.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-9898?

CVE-2019-9898 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2019-9898?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-9898, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

CVE-2019-9898

CRITICALNVD 9.89.8—

9.8

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

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 89.0%
KEV: Not listed

References (22)

cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html
cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html
cve@mitrehttp://www.securityfocus.com/bid/107523
cve@mitrehttps://lists.debian.org/debian-lts-announce/2019/04/msg00023.html
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36LWQ3NPFIV7DC7TC4KFPRYRH2OR7SZ2/
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LDO3F267P347E6U2IILFCYW7JPTLCCES/
cve@mitrehttps://seclists.org/bugtraq/2019/Apr/6
cve@mitrehttps://security.netapp.com/advisory/ntap-20190329-0002/
cve@mitrehttps://security.netapp.com/advisory/ntap-20190401-0002/
cve@mitrehttps://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
cve@mitrehttps://www.debian.org/security/2019/dsa-4423
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/107523
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/04/msg00023.html

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CVE-2019-9898

Published

Last Modified

References (22)

Weakness Classification(1)

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-9898?

CVE-2019-9898

📅 Published

🔄 Last Modified

🔗 References (22)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-9898?

Published

Last Modified

References (22)

Frequently asked(5)