Is CVE-2011-4607 actively exploited?

CVE-2011-4607 has no public evidence of in-the-wild exploitation as of 2026-04-29.

What is the CVSS score for CVE-2011-4607?

CVE-2011-4607 has a CVSS score of 2.1 (UNKNOWN severity). Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N.

How do I patch CVE-2011-4607?

Patch guidance is available from putty security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2011-4607.

Which products are affected by CVE-2011-4607?

3 products: putty putty, putty putty, putty putty.

CVE-2011-4607 - remediation guidance & executive summary

Description

PuTTY 0.59 through 0.61 does not clear sensitive process memory when managing user replies that occur during keyboard-interactive authentication, which might allow local users to read login passwords by obtaining access to the process' memory.

CVSS Metrics

Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N
Access Vector: local
Access Cmplx: low
Auth: none
Confidentiality: partial
Integrity: none
Availability: none
Weaknesses: CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: PUTTY
Published: 8/23/2013
Last Modified: 4/29/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

putty : puttyputty : puttyputty : putty

Remediation Guidance

Executive Summary

Cite this page

CVE-2011-4607. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2011-4607

View on NIST NVD

CVE-2011-4607 vulnerability