Back to Database
Status published
Critical
CVE-2021-45952
Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called...
Vulnerability Description
Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-45952
Credits & Attribution
No credits recorded in the NVD database.
References
More from thekelleys
View All →CVE-2021-45957
Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called...
Critical
9.8
CVE-2021-45956
Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called...
Unknown
0
CVE-2021-45955
Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called...
Critical
9.8
CVE-2021-45954
Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called...
Critical
9.8
CVE-2021-45953
Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called...
Critical
9.8
Affected Vendor
thekelleys
View all reports →Affected Software
dnsmasq
Vulnerable Versions:
2.86
Timeline
Official Publish:
December 31st, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.