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Vulnerability record · CVE-2019-9896 · published 21 March 2019

CVE-2019-9896: Putty uncontrolled search path element vulnerability

Putty · Putty

In PuTTY versions before 0.71 on Windows, local attackers could hijack the application by putting a malicious help file in the same directory as the executable.

7.8 CVSS 3.1 High EPSS 0.76% · top 46.5% CWE-427 · Uncontrolled search path element
7.8CVSS 3.1 base score, v2 4.6
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

In PuTTY versions before 0.71 on Windows, local attackers could hijack the application by putting a malicious help file in the same directory as the executable.

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

Affected products

3 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
https://security.netapp.com/advisory/ntap-20190404-0001/ Third Party Advisory
https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html Release NotesThird 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
https://security.netapp.com/advisory/ntap-20190404-0001/ Third Party Advisory
https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html Release NotesThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-9896), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.