CVE-2019-9896
HIGHCVSS 7.8/10EPSS 0.76%
Last modified
CVE-2019-9896 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Putty | Putty | < 0.71 |
| Opensuse | Backports Sle | 15.0 |
| Opensuse | Leap | 15.0 |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190404-0001/Third Party Advisory
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.htmlRelease Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190404-0001/Third Party Advisory
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.htmlRelease Notes, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-9896?
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.
How severe is CVE-2019-9896?
CVE-2019-9896 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.
How do I fix CVE-2019-9896?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-9896?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST