CVE-2013-4208

Name: CVE-2013-4208
Creator: NVD / NIST
Published: 2013-08-19T23:55:08.833+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.39%

Last modified Jun 16, 2026

CVE-2013-4208 is a vulnerability of currently unknown severity. The rsa_verify function in PuTTY before 0.63 (1) does not clear sensitive process memory after use and (2) does not free certain structures containing sensitive process memory, which might allow local users to discover private RSA and DSA keys.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The rsa_verify function in PuTTY before 0.63 (1) does not clear sensitive process memory after use and (2) does not free certain structures containing sensitive process memory, which might allow local users to discover private RSA and DSA keys.

Metrics

EPSS Probability

0.39%

30.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Putty	Putty	0.45
Putty	Putty	0.46
Putty	Putty	0.47
Putty	Putty	0.48
Putty	Putty	0.49
Putty	Putty	0.50
Putty	Putty	0.51
Putty	Putty	0.52
Putty	Putty	0.53b
Putty	Putty	0.54
Putty	Putty	0.55
Putty	Putty	0.56
Putty	Putty	0.57
Putty	Putty	0.58
Putty	Putty	0.59
Putty	Putty	0.60
Putty	Putty	0.61
Simon Tatham	Putty	<= 0.62
Simon Tatham	Putty	0.53

References

Timeline

Published: Aug 19, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-4208?

How severe is CVE-2013-4208?

Severity scoring for CVE-2013-4208 is pending analysis. The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2013-4208?

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.

Are you affected by CVE-2013-4208?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST