CVE-2022-48021

Name: CVE-2022-48021
Creator: NVD / NIST
Published: 2023-02-03T01:15:13.203+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.88%

Last modified Jun 17, 2026

CVE-2022-48021 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability in Zammad v5.3.0 allows attackers to execute arbitrary code or escalate privileges via a crafted message sent to the server.. EPSS estimates a 0.88% chance of exploitation in the next 30 days.

Description

A vulnerability in Zammad v5.3.0 allows attackers to execute arbitrary code or escalate privileges via a crafted message sent to the server.

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

0.88%

54.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Zammad	Zammad	5.3.0

References

https://zammad.com/de/advisories/zaa-2022-11Vendor Advisory
https://zammad.com/de/advisories/zaa-2022-11Vendor Advisory

Timeline

Published: Feb 3, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-48021?

A vulnerability in Zammad v5.3.0 allows attackers to execute arbitrary code or escalate privileges via a crafted message sent to the server.

How severe is CVE-2022-48021?

CVE-2022-48021 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.

How do I fix CVE-2022-48021?

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-2022-48021?

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

Scan your code now

Source: NVD / NIST