When was CVE-2015-2157 disclosed?

CVE-2015-2157 was first published in the National Vulnerability Database on March 27, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-2157 actively exploited?

CVE-2015-2157 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2015-2157?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-2157, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

CVE-2015-2157

NONECVSS 0.0

0.0

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.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 31.4%
KEV: Not listed

References (20)

cve@mitrehttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html
cve@mitrehttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html
cve@mitrehttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html
cve@mitrehttp://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html
cve@mitrehttp://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
cve@mitrehttp://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html
cve@mitrehttp://www.debian.org/security/2015/dsa-3190
cve@mitrehttp://www.openwall.com/lists/oss-security/2015/02/28/4
cve@mitrehttp://www.openwall.com/lists/oss-security/2015/02/28/5
cve@mitrehttp://www.securityfocus.com/bid/72825
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html
af854a3a-2127-422b-91ae-364da2661108http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html

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CVE-2015-2157

Published

Last Modified

References (20)

Weakness Classification(1)

Data Freshness Timeline

Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2015-2157?

Same CWE

CVE-2015-2157

📅 Published

🔄 Last Modified

🔗 References (20)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2015-2157?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (20)

Frequently asked(4)

Related CVEs(same CWE)