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CVE-2022-38308

40
FAUCET Score

CVE-2022-38308 is a critical command injection vulnerability affecting TOTOLink A700RU V7.4cu.2313_B20191024 firmware, specifically through the 'lang' parameter in the 'cstesystem' function. With a CVSS score of 9.8, this vulnerability allows unauthenticated attackers to execute arbitrary commands remotely with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, its high EPSS and FAUCET Risk Score indicate significant potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
7.4cu.2313_b20191024CPE matchmatch criteria
cpe:2.3:o:totolink:a7000ru_firmware:7.4cu.2313_b20191024:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
20.35%
Probability of exploitation in next 30 days
EPSS Percentile
97.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.2035 is in the 94th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / WhoisZkuan/TOTOlink-A700RU
ExploitPatchThird Party Advisory