HIGH

CVE-2022-31793

CVSS v3

7.5

HIGH

EPSS Score

93.8%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

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.

Technical details

Published
8/4/2022

Frequently asked questions

What is 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.

Is CVE-2022-31793 actively exploited?

Active exploitation of CVE-2022-31793 has not been confirmed. The EPSS score is 93.8%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-31793?

CVE-2022-31793 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2022-31793 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.