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CVE-2022-43973

25
FAUCET Score

CVE-2022-43973 is an arbitrary code execution vulnerability affecting Linksys WRT54GL Wireless-G Broadband Routers with firmware versions 4.30.18.006 and older. It stems from unvalidated user input in the Check_TSSI function of the httpd binary, allowing an authenticated administrator to inject commands. This vulnerability carries a CVSS score of 7.2 (HIGH), indicating that an attacker can achieve complete compromise (confidentiality, integrity, availability) of the device over the network with low attack complexity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.30.18.006CPE matchmatch criteria
cpe:2.3:o:linksys:wrt54gl_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.85%
Probability of exploitation in next 30 days
EPSS Percentile
77.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0186 is in the 72nd percentile among its peer group of 5,537 CVEs.

Social Chatter

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

youtu.be / 73-1lhvJPNg
ExploitThird Party Advisory
youtu.be / RfWVYCUBNZ0
ExploitThird Party Advisory
youtu.be / TeWAmZaKQ_w
ExploitThird Party Advisory