Buffer overflow in Emqx Nanomq
CVE-2023-33659
A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function nmq_subinfo_decode() in the file mqtt_parser.c. An attacker could exploit this vulnerability to cause a denial of service attack.
Vulnerability class: Buffer Overflow
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 (63.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.6% 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
- Emqx Nanomq — versions 0.17.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/emqx/nanomq (Product)
- github.com/emqx/nanomq/issues/1154 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8… (Patch)
Frequently asked questions
- What is CVE-2023-33659?
- CVE-2023-33659 is a high-severity vulnerability in Emqx Nanomq, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-06-06.
- How severe is CVE-2023-33659?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-33659 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.