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Fencer Vulns
high 7.8

CVE-2019-9896 json

In PuTTY versions before 0.71 on Windows, local attackers could hijack the application by putting a malicious help file in the same directo…

published 2019-03-21 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-19252

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

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.

Patch / fix

  • putty putty 0.71
  • putty Package Hub 15 0.71-bp150.4.3.1
  • putty openSUSE Leap 15.0 0.71-lp150.9.1

opensuse advisories openSUSE-SU-2019:1123-1openSUSE-SU-2019:1113-1

Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-427 Uncontrolled Search Path Element

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.