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CRITICAL

CVE-2022-34294

CVSS v3

9.8

CRITICAL

EPSS Score

1.8 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

totd 1.5.3 uses a fixed UDP source port in upstream queries sent to DNS resolvers. This allows DNS cache poisoning because there is not enough entropy to prevent traffic injection attacks.

Technical details

Published
2022-08-15

Frequently asked questions

What is CVE-2022-34294?

totd 1.5.3 uses a fixed UDP source port in upstream queries sent to DNS resolvers. This allows DNS cache poisoning because there is not enough entropy to prevent traffic injection attacks.

Is CVE-2022-34294 actively exploited?

Active exploitation of CVE-2022-34294 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-34294?

CVE-2022-34294 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2022-34294 affecting your environment?

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