7.2

CVE-2023-31742: linksys wrt54gl_firmware Command Injection

Modified
Published 22-05-2023Last modified 09-07-2026

Vulnerability summary

CVE-2023-31742 is a high (CVSS 7.2) Command Injection vulnerability in linksys wrt54gl_firmware. EPSS estimates a 9.15% chance of exploitation in the next 30 days, higher than 95.3% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v3.1 (CVE.org)
EPSS score
9.15%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2github, metasploit

Timeline

  1. 22-05-2023
    PublishedVulnerability first disclosed.
  2. 09-07-2026
    Last modifiedVulnerability information updated.

Description

There is a command injection vulnerability in the Linksys WRT54GL router with firmware version 4.30.18.006. If an attacker gains web management privileges, they can inject commands into the post request parameters wl_ant, wl_rate, WL_atten_ctl, ttcp_num, ttcp_size in the httpd s Start_EPI() function, thereby gaining shell privileges.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

9.15%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

No change 0.00 pp

From 9.15% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • githubUnverified

    Cve

    Maturity: poc

  • MetasploitMetasploitremoteUnverified

    Linksys WRT54GL Remote Command Execution

    auxiliary/admin/http/linksys_wrt54gl_exec

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Linksys1 product

1 vendor · 1 product

References

1 links