What is CVE-2023-31742?

CVE-2023-31742 is a high-severity vulnerability in Linksys Wrt54gl, classified under Command Injection. CVSS score: 7.2/10. Published 2023-05-22.

How severe is CVE-2023-31742?

High severity. CVSS v3 base score is 7.2 out of 10.

Is CVE-2023-31742 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Linksys Wrt54gl

CVE-2023-31742

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.091 (94.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linksys Wrt54gl
Linksys Wrt54gl_firmware — versions 4.30.18.006
N/a — versions n/a

Weakness classification (CWE)

CWE-77 — Command Injection

Public proof-of-concept exploits

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
cve@mitre.org (Exploit, Third Party Advisory, Mitigation)

Frequently asked questions

What is CVE-2023-31742?: CVE-2023-31742 is a high-severity vulnerability in Linksys Wrt54gl, classified under Command Injection. CVSS score: 7.2/10. Published 2023-05-22.
How severe is CVE-2023-31742?: High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2023-31742 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.