CVE-2017-14491
9.8CVSSCRITICAL
Description
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
and 21 more affected products View all →
Attack Graph
Products CVE Techniques Tactics
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Exploitability
3 exploit sources identified
Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.
View exploit details Official Patch Available
Workaround Available
MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
http://www.securitytracker.com/id/1039474
securitytracker.com
https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq
synology.com
http://www.debian.org/security/2017/dsa-3989
debian.org
and 256 more references View all →
Timeline
Published
Oct 2, 2017
Last Updated
May 13, 2026
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