CVE-2023-41173

HIGHNVD 7.57.5—

7.5

AdGuard DNS before 2.2 allows remote attackers to cause a denial of service via malformed UDP packets.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 56.6%
KEV: Not listed

Published

August 25, 2023

Last Modified

January 14, 2026

References (2)

cve@mitrehttps://adguard-dns.io/en/versions.html#2.2
af854a3a-2127-422b-91ae-364da2661108https://adguard-dns.io/en/versions.html#2.2

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 22:46 UTCepss_batch
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Frequently asked(5)

What is CVE-2023-41173?

CVE-2023-41173 is a high vulnerability published on August 25, 2023. AdGuard DNS before 2.2 allows remote attackers to cause a denial of service via malformed UDP packets.

When was CVE-2023-41173 disclosed?

CVE-2023-41173 was first published in the National Vulnerability Database on August 25, 2023, with the most recent update on January 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-41173 actively exploited?

CVE-2023-41173 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 56.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-41173?

CVE-2023-41173 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2023-41173?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-41173, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-41173

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-41173?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)