CVE-2016-2563
9.8
CRITICAL
CVSS 3.1
EPSS 26.6%
Description
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.
How to fix CVE-2016-2563
To remediate CVE-2016-2563, upgrade the affected package to a fixed version below.
- Debian/putty—upgrade to 0.67-1 or later
Is CVE-2016-2563 being exploited?
Moderate — EPSS is 26.6%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 0.67-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |