AZL-112430
Dashboard / Vulnerabilities / AZL-112430
Summary: CVE-2026-93009 affecting package dnsmasq 2.93-1
Details: A flaw was found in dnsmasq. The DHCPv6 client hostname parser can read one byte past the end of a crafted FQDN option because it checks the next label length before confirming the pointer is still inside the option. An attacker on the local network can trigger this with a single DHCPv6 packet. The extra byte is not returned to the client or logged, and no crash has been demonstrated.
References: https://nvd.nist.gov/vuln/detail/CVE-2026-93009
Affected packages
Package
Name: dnsmasq
Purl: pkg:rpm/azure-linux/dnsmasq
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -None
Affected versions
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
