CVE•Published 2026-07-15•Modified 2026-07-30•0 articles on news•4 live references•NVD data

CVE-2026-47703Adguard · Adguardhome

Vulnerability data via NVD (ingested)

CVSS v3.1

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS percentile

Exploit Prediction Scoring System · top 97% of all CVEs

Weaknesses (CWE)

CWE-330Use of Insufficiently Random Values CWE-346Origin Validation Error

Description

AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.75, AdGuard Home's client-triggered DoQ forwarding path to a udp:// upstream reduced backend UDP DNS state by producing dns_id=0 or txid=0 and exposed a quoted-port ICMP source-port oracle, weakening DNS response matching for forwarded queries. This issue is fixed in version 0.107.75.

Timeline

Published 2026-07-15

Modified 2026-07-30

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). Live host counts are a Premium feature.

Shodan · vuln tag

vuln:CVE-2026-47703

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Adguard Adguardhome"

All exposed Adguard Adguardhome instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Adguardhome"

HTTP body or banner mentions "Adguardhome" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-47703