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Affected Component
Analysis
zeroconf
Exploitable
Name
CVE-2026-48487
Description
Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.16, _read_character_string and _read_string in src/zeroconf/_protocol/incoming.py advanced self.offset by attacker-declared RDLENGTH without checking it against self._data_len, allowing unauthenticated hosts on the local link over UDP/5353 (224.0.0.251 / ff02::fb) to send a TXT, HINFO, or A/AAAA record with rdlength=65535 and seed DNSCache and ServiceInfo.properties with truncated, attacker-shaped key/value or address records. This issue is fixed in version 0.149.16.
CWEs
Published Date
Updated Date
Workaround
-
Analysis#
Vulnerability Ratings#
5.3
CVSSv4
5.3
CVSSv31
NaN
other