CVE-2019-9896

mediumpriority · track · 41EPSS 0.008 · 55 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.76% (55th) EPSS

CVSS 4.6 · medium

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–7.8

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.4highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-427USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

yasinyilmaz/vuln-chm-hijackPotential malicious code execution via CHM hijacking (CVE-2019-9896)PoC · poc_in_github

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
opensuse backports sle= 15.0nvdUScpe:2.3:a:opensuse:backports_sle:*:*:*:*:*:*:*:*
opensuse leap= 15.0nvdUScpe:2.3:o:opensuse:leap:*:*:*:*:*:*:*:*
putty putty< 0.71nvdUScpe:2.3:a:putty:putty:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2019-03-21modified 2026-06-17

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+1382 more

references (13)

External citations — patches, advisories, analysis.

scry

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