What is CVE-2023-28727?

CVE-2023-28727 is a critical-severity vulnerability in Panasonic Aiseg2, classified under Improper Authentication. CVSS score: 9.6/10. Published 2023-03-31.

How severe is CVE-2023-28727?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Auth bypass in Panasonic Aiseg2

CVE-2023-28727

Panasonic AiSEG2 versions 2.00J through 2.93A allows adjacent attackers bypass authentication due to mishandling of X-Forwarded-For headers.

Vulnerability class: Broken Authentication

Published 2023-03-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (28.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Panasonic Aiseg2 — versions 2.00J
Panasonic Aiseg2 Firmware

Weakness classification (CWE)

References

www2.panasonic.biz/jp/densetsu/aiseg/firmup_info.html (Release Notes)

Frequently asked questions

What is CVE-2023-28727?: CVE-2023-28727 is a critical-severity vulnerability in Panasonic Aiseg2, classified under Improper Authentication. CVSS score: 9.6/10. Published 2023-03-31.
How severe is CVE-2023-28727?: Critical severity. CVSS v3 base score is 9.6 out of 10.