CVE-2016-2563
high-risk
Published 2016-04-07
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.
Do I need to act?
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28.6% chance of exploitation in next 30 days
EPSS score — higher than 71% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Vendors
References (14)
Vendor Advisory
https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563
Vendor Advisory
https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563
54
/ 100
high-risk
Severity
32/34 · Critical
Exploitability
15/34 · Moderate
Exposure
7/34 · Low