THREATPORT/VULNERABILITY/CVE-2022-31793
HIGH SEVERITY

CVE-2022-31793

Muhttpd vulnerability

CVSS
7.5
EPSS
12.0%
EPSS pct
96th
Exploited
No known
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.
Affected vendor
Inglorion
Affected product
Muhttpd
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2022-08-04

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 12.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2022-31793

  • Confirm whether Inglorion Muhttpd is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2022-31793.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-31793

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-31793 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2022-31793?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2022-31793.

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