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TI-2015-01933 Aliases CVE-2015-2157GHSA-cmw5-crx2-gx7r

The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63…

Priority LOW 12CWE-200Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Partial · None · None
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory.

Why it matters now

EPSS 0.00585 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 19

CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*20VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*22VulnerableFedoraproject
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*13.1VulnerableopenSUSE
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*13.2VulnerableopenSUSE
cpe:2.3:a:putty:putty:0.51:*:*:*:*:*:*:*0.51VulnerablePuTTY
cpe:2.3:a:putty:putty:0.52:*:*:*:*:*:*:*0.52VulnerablePuTTY
cpe:2.3:a:putty:putty:0.53b:*:*:*:*:*:*:*0.53bVulnerablePuTTY
cpe:2.3:a:putty:putty:0.54:*:*:*:*:*:*:*0.54VulnerablePuTTY
cpe:2.3:a:putty:putty:0.55:*:*:*:*:*:*:*0.55VulnerablePuTTY
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* Versions 20 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* Versions 22 Vulnerable ·Fedoraproject
  • cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE
  • cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* Versions 13.2 Vulnerable ·openSUSE
  • cpe:2.3:a:putty:putty:0.51:*:*:*:*:*:*:* Versions 0.51 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.52:*:*:*:*:*:*:* Versions 0.52 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.53b:*:*:*:*:*:*:* Versions 0.53b Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.54:*:*:*:*:*:*:* Versions 0.54 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.55:*:*:*:*:*:*:* Versions 0.55 Vulnerable ·PuTTY
Show 9 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:putty:putty:0.56:*:*:*:*:*:*:*0.56VulnerablePuTTY
cpe:2.3:a:putty:putty:0.57:*:*:*:*:*:*:*0.57VulnerablePuTTY
cpe:2.3:a:putty:putty:0.58:*:*:*:*:*:*:*0.58VulnerablePuTTY
cpe:2.3:a:putty:putty:0.59:*:*:*:*:*:*:*0.59VulnerablePuTTY
cpe:2.3:a:putty:putty:0.60:*:*:*:*:*:*:*0.60VulnerablePuTTY
cpe:2.3:a:putty:putty:0.61:*:*:*:*:*:*:*0.61VulnerablePuTTY
cpe:2.3:a:putty:putty:0.62:*:*:*:*:*:*:*0.62VulnerablePuTTY
cpe:2.3:a:putty:putty:0.63:*:*:*:*:*:*:*0.63VulnerablePuTTY
cpe:2.3:a:simon_tatham:putty:0.53:*:*:*:*:*:*:*0.53VulnerableSimon Tatham
  • cpe:2.3:a:putty:putty:0.56:*:*:*:*:*:*:* Versions 0.56 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.57:*:*:*:*:*:*:* Versions 0.57 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.58:*:*:*:*:*:*:* Versions 0.58 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.59:*:*:*:*:*:*:* Versions 0.59 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.60:*:*:*:*:*:*:* Versions 0.60 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.61:*:*:*:*:*:*:* Versions 0.61 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.62:*:*:*:*:*:*:* Versions 0.62 Vulnerable ·PuTTY
  • cpe:2.3:a:putty:putty:0.63:*:*:*:*:*:*:* Versions 0.63 Vulnerable ·PuTTY
  • cpe:2.3:a:simon_tatham:putty:0.53:*:*:*:*:*:*:* Versions 0.53 Vulnerable ·Simon Tatham

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-2157
  2. 2026-10-03 Alias added: GHSA-cmw5-crx2-gx7r

References

Patch 2

Advisory 5

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences