RCE in Azure Azure-Uamqp-C

CVE-2024-21646

Azure uAMQP is a general purpose C library for AMQP 1.0. The UAMQP library is used by several clients to implement AMQP protocol communication. When clients using this library receive a crafted binary type data, an integer overflow or wraparound or memory safety issue can occur and may cause remote code execution. This vulnerability has been patched in release 2024-01-01.

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.051 (92.1th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-21646: held from 0.051 to 0.051.

EPSS over last 30 days · oldest: 0.051 · newest: 0.051 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-21646?
CVE-2024-21646 is a critical-severity vulnerability in Azure Azure-Uamqp-C, classified under Code Injection. CVSS score: 9.8/10. Published 2024-01-09.
How severe is CVE-2024-21646?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-21646 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.