Deserialization in Emq Technologies X Broker
CVE-2021-33175
EMQ X Broker versions prior to 4.2.8 are vulnerable to a denial of service attack as a result of excessive memory consumption due to the handling of untrusted inputs. These inputs cause the message broker to consume large amounts of memory, resulting in the application being terminated by the operating system.
Vulnerability class: Insecure Deserialization
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.011 (64.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Emq Technologies X Broker — versions <4.2.8
- Emqx Emq X Broker
Weakness classification (CWE)
References
- www.synopsys.com/blogs/software-security/cyrc-advisory-rabbitmq-emqx-vernemq (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33175?
- CVE-2021-33175 is a high-severity vulnerability in Emq Technologies X Broker, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2021-06-08.
- How severe is CVE-2021-33175?
- High severity. CVSS v3 base score is 7.5 out of 10.