Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade putty | Aug 30, 2017 | Apr 7, 2016 |
| Debian | — | Upgrade putty | Jul 30, 2024 | Apr 7, 2016 |
| Freebsd | — | Upgrade putty | Dec 10, 2025 | Mar 7, 2016 |
| Gentoo Linux | — | Upgrade net-misc/putty. | Oct 30, 2017 | Apr 7, 2016 |
| Suse | — | Upgrade putty-debugsourceUpgrade puttyUpgrade putty-debuginfo | Jun 1, 2016 | Apr 7, 2016 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub