What is CVE-2022-48256?

CVE-2022-48256 is a high-severity vulnerability in Technitium Dns_server, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2023-01-13.

How severe is CVE-2022-48256?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-48256 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Technitium Dns_server

CVE-2022-48256

Technitium DNS Server before 10.0 allows a self-CNAME denial-of-service attack in which a CNAME loop causes an answer to contain hundreds of records.

EPSS: 0.007 (48.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Technitium Dns_server
N/a — versions n/a

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

Public proof-of-concept exploits

dns-differential-fuzzing/dns-differential-fuzzing

References

cve@mitre.org (Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2022-48256?: CVE-2022-48256 is a high-severity vulnerability in Technitium Dns_server, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2023-01-13.
How severe is CVE-2022-48256?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-48256 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.