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CVE-2015-2157
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…
Low2.1EPSS 0.58%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.58% · top 52% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.1.
Weakness
Affected products
n/a
- affected n/a
References (10)
- http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2015-3160 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 72825 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-3190 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- FEDORA-2015-3070 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [oss-security] 20150228 CVE Request: PuTTY fails to clear private key information from memory (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20150228 Re: CVE Request: PuTTY fails to clear private key information from memory (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2015:0474 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2015-3204 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .