Path Traversal in Arris Bgw210
CVE-2022-31793
do_request in request.c in muhttpd before 1.1.7 allows remote attackers to read arbitrary files by constructing a URL with a single character before a desired path on the filesystem. This occurs because the code skips over the first character when serving files. Arris NVG443, NVG599, NVG589, and NVG510 devices and Arris-derived BGW210 and BGW320 devices are affected.
Vulnerability class: Path Traversal (Directory Traversal)
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:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.169 (97.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.159 · newest: 0.169 · change: +0.010
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- inglorion.net/software/muhttpd/ (Third Party Advisory)
- kb.cert.org/vuls/id/495801 (US Government Resource, Third Party Advisory)
- derekabdine.com/blog/2022-arris-advisory (Exploit, Third Party Advisory)
- blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-arris-ro… (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2022-31793?
- CVE-2022-31793 is a high-severity vulnerability in Arris Bgw210, classified under Path Traversal. CVSS score: 7.5/10. Published 2022-08-04.
- How severe is CVE-2022-31793?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-31793 known to be exploited?
- 25 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.