CVE-2022-34294

Name: CVE-2022-34294
Creator: NVD / NIST
Published: 2022-08-15T12:15:19.963+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.44%

Last modified Jun 17, 2026

CVE-2022-34294 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.44% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.44%

69.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-331

Affected Software

Vendor	Product	Versions
Totd Project	Totd	1.5.3

References

https://github.com/fwdillema/totdThird Party Advisory
https://www.blackhat.com/presentations/bh-jp-08/bh-jp-08-Kaminsky/BlackHat-Japan-08-Kaminsky-DNS08-BlackOps.pdfThird Party Advisory
https://www.openwall.com/lists/oss-security/2022/08/14/2Exploit, Mailing List, Third Party Advisory
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitnerTechnical Description, Third Party Advisory
https://github.com/fwdillema/totdThird Party Advisory
https://www.blackhat.com/presentations/bh-jp-08/bh-jp-08-Kaminsky/BlackHat-Japan-08-Kaminsky-DNS08-BlackOps.pdfThird Party Advisory
https://www.openwall.com/lists/oss-security/2022/08/14/2Exploit, Mailing List, Third Party Advisory
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitnerTechnical Description, Third Party Advisory

Timeline

Published: Aug 15, 2022
Last Modified: Jun 17, 2026
Status: Modified

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.

How severe is CVE-2022-34294?

CVE-2022-34294 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.44% probability of exploitation in the next 30 days.

How do I fix CVE-2022-34294?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-34294?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST