What is CVE-2009-5157?

CVE-2009-5157 is a high-severity vulnerability in Linksys Wag54g2, classified under Command Injection. CVSS score: 8.8/10. Published 2019-06-11.

How severe is CVE-2009-5157?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Linksys Wag54g2

CVE-2009-5157

On Linksys WAG54G2 1.00.10 devices, there is authenticated command injection via shell metacharacters in the setup.cgi c4_ping_ipaddr variable.

Vulnerability class: Command Injection (OS Command Injection)

Published 2019-06-11 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.058 (92.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.058 · newest: 0.058 · change: 0.000

Affected products

Linksys Wag54g2
Linksys Wag54g2 Firmware — versions 1.00.10

Weakness classification (CWE)

CWE-77 — Command Injection

References

www.securityfocus.com/bid/35142 (VDB Entry, Third Party Advisory)
www.securityfocus.com/archive/1/503934 (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2009-5157?: CVE-2009-5157 is a high-severity vulnerability in Linksys Wag54g2, classified under Command Injection. CVSS score: 8.8/10. Published 2019-06-11.
How severe is CVE-2009-5157?: High severity. CVSS v3 base score is 8.8 out of 10.