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Vulnerability · Published Dec 31, 2021 · Assigned by mitre

CVE-2021-45956

Critical 9.8

In plain English

A critical-severity out-of-bounds write in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.7% (higher than 86% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)2.7%top 14.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). 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.

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References