CVE•Published 2026-07-17•Modified 2026-07-23•0 articles on news•4 live references•NVD data

CVE-2026-48487

Vulnerability data via NVD (ingested)

CVSS v3.1

—

EPSS percentile

Exploit Prediction Scoring System · top 76% of all CVEs

Weaknesses (CWE)

CWE-130Improper Handling of Length Parameter Inconsistency

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.

Timeline

Published 2026-07-17

Modified 2026-07-23

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-48487

Hosts Shodan has explicitly fingerprinted as vulnerable.

More intel sources (5)

Shodan report

vuln:CVE-2026-48487

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2026-48487

Censys host search filtered to this CVE id.

grep.app

CVE-2026-48487