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Fencer Vulns
high 7.5

CVE-2022-31793 in the critical feed json

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 charact…

published 2022-08-04 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-53184

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
17.7%
EPSS 17.7% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known, plus a Nuclei check

Summary

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.

Patch / fix

  • inglorion muhttpd 1.1.7

Exploit prediction

17.75% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template muhttpd <=1.1.5 - Local Inclusion nuclei detection template
  • derekabdine.com https://derekabdine.com/blog/2022-arris-advisory referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.