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Fencer Vulns
high 7.5

CVE-2023-41173 json

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

published 2023-08-25 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-45690

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

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

Patch / fix

  • adguard adguard_dns 2.2

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.