CVE catalog
CVE-2016-2563
putty: CVE-2016-2563
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 32.80% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | putty | sid | 0.85-3 | fixed |
| Debian | putty | forky | 0.85-3 | fixed |
| Debian | putty | trixie | 0.83-3 | fixed |
| Debian | putty | bookworm | 0.78-2+deb12u2 | fixed |
| Debian | putty | bookworm-security | 0.78-2+deb12u1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | putty | source | sid | 0.67-1 | not yet assigned | Not reported | [816921] |
| Debian | putty | source | forky | 0.67-1 | not yet assigned | Not reported | [816921] |
| Debian | putty | source | trixie | 0.67-1 | not yet assigned | Not reported | [816921] |
| Debian | putty | source | bookworm | 0.67-1 | not yet assigned | Not reported | [816921] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [pterm]Fixed
Source package: [putty]
Details (4)
0.78-2+deb12u2· amd64 · bookwormFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u2· arm64 · bookwormFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
- [putty]Fixed
Details (4)
0.78-2+deb12u2· amd64 · bookwormFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u2· arm64 · bookwormFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
- [putty-doc]Fixed
Source package: [putty]
Details (4)
0.78-2+deb12u2· all · bookwormFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u2· all · bookwormFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u1· all · bookworm-securityFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u1· all · bookworm-securityFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
- [putty-tools]Fixed
Source package: [putty]
Details (4)
0.78-2+deb12u2· amd64 · bookwormFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u2· arm64 · bookwormFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
0.78-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
0.67-1dsa · putty · debian · bookworm; dsa · putty · debian · 12
[Debian 13 (Trixie)]
- [pterm]Fixed
Source package: [putty]
Details (2)
0.83-3· amd64 · trixieFixed · Fixed:
0.67-1dsa · putty · debian · 13
0.83-3· arm64 · trixieFixed · Fixed:
0.67-1dsa · putty · debian · 13
- [putty]Fixed
Details (2)
0.83-3· amd64 · trixieFixed · Fixed:
0.67-1dsa · putty · debian · 13
0.83-3· arm64 · trixieFixed · Fixed:
0.67-1dsa · putty · debian · 13
- [putty-doc]Fixed
Source package: [putty]
Details (2)
0.83-3· all · trixieFixed · Fixed:
0.67-1dsa · putty · debian · 13
0.83-3· all · trixieFixed · Fixed:
0.67-1dsa · putty · debian · 13
- [putty-tools]Fixed
Source package: [putty]
Details (2)
0.83-3· amd64 · trixieFixed · Fixed:
0.67-1dsa · putty · debian · 13
0.83-3· arm64 · trixieFixed · Fixed:
0.67-1dsa · putty · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2016-2563]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2016-2563]
- [https://security-tracker.debian.org/tracker/CVE-2016-2563]
- [https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-2563.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]