What is CVE-2023-40796?

CVE-2023-40796 is a high-severity vulnerability in Phicomm K2, classified under Command Injection. CVSS score: 7.8/10. Published 2023-08-25.

How severe is CVE-2023-40796?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Phicomm K2

CVE-2023-40796

Phicomm k2 v22.6.529.216 was discovered to contain a command injection vulnerability via the function luci.sys.call.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-08-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Phicomm K2
Phicomm K2 Firmware — versions 22.6.529.216

Weakness classification (CWE)

CWE-77 — Command Injection

References

github.com/lst-oss/Vulnerability/tree/main/Phicomm/k2 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-40796?: CVE-2023-40796 is a high-severity vulnerability in Phicomm K2, classified under Command Injection. CVSS score: 7.8/10. Published 2023-08-25.
How severe is CVE-2023-40796?: High severity. CVSS v3 base score is 7.8 out of 10.