CVE-2021-42084
MEDIUMCVSS 6.5/10EPSS 0.90%
Last modified
CVE-2021-42084 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An issue was discovered in Zammad before 4.1.1. An attacker with valid agent credentials may send a series of crafted requests that cause an endless loop and thus cause denial of service.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.
Description
An issue was discovered in Zammad before 4.1.1. An attacker with valid agent credentials may send a series of crafted requests that cause an endless loop and thus cause denial of service.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zammad | Zammad | < 4.1.1 |
References
- https://zammad.com/en/advisories/zaa-2021-11Vendor Advisory
- https://zammad.com/en/advisories/zaa-2021-11Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-42084?
An issue was discovered in Zammad before 4.1.1. An attacker with valid agent credentials may send a series of crafted requests that cause an endless loop and thus cause denial of service.
How severe is CVE-2021-42084?
CVE-2021-42084 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.
How do I fix CVE-2021-42084?
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-2021-42084?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST