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CVE-2022-31793

42
FAUCET Score

CVE-2022-31793 is a high-severity arbitrary file read vulnerability in muhttpd versions prior to 1.1.7, affecting devices such as Arris NVG and BGW series. An unauthenticated remote attacker can exploit this flaw by crafting a malicious URL, allowing them to read sensitive files from the affected device's filesystem. With a CVSS score of 7.5 and an EPSS score indicating high exploitability, this vulnerability presents a significant risk. While no active exploitation is confirmed and no Metasploit modules exist, Nuclei templates are available, suggesting potential for exploitation. Community discussion and media coverage are currently low.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.7CPE matchmatch criteria
cpe:2.3:a:inglorion:muhttpd:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:arris:nvg443_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:arris:nvg599_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:arris:nvg589_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:arris:nvg510_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
12.00%
Probability of exploitation in next 30 days
EPSS Percentile
95.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Nuclei: CVE-2022-31793 · Jul 31, 2022
This CVE's current EPSS score of 0.1200 is in the 93rd percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kb.cert.org / vuls/id/495801
inglorion.net / software/muhttpd
Third Party Advisory
blog.malwarebytes.com / exploits-and-vulnerabilities/2022/08/millions-of-arris-routers-are-vulnerable-to-path-traversal-attacks
Third Party Advisory
derekabdine.com / blog/2022-arris-advisory
ExploitThird Party Advisory
kb.cert.org / vuls/id/495801
Third Party AdvisoryUS Government Resource