CVE-2023-28727

Authentication bypass via trusted forwarding header

Published Mar 31, 2023 · Updated Feb 12, 2025

Authentication bypass in Panasonic AiSEG2 2.00J through 2.93A allows adjacent attackers to access the product without credentials. The authentication path mishandles the X-Forwarded-For header and treats attacker-controlled forwarding data as a basis for trust. Reachability requires network adjacency; Panasonic has not disclosed the affected endpoint or which authenticated functions become accessible.

CVSS severity9.6
Critical
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Panasonic AiSEG2 2.00J through 2.93A allows adjacent attackers to access the product without credentials. The authentication path mishandles the X-Forwarded-For header and treats attacker-controlled forwarding data as a basis for trust. Reachability requires network adjacency; Panasonic has not disclosed the affected endpoint or which authenticated functions become accessible.

The record

CVE
CVE-2023-28727
Published
Mar 31, 2023
Updated
Feb 12, 2025
Vendor
Panasonic
Product
AiSEG2
Classifications
CWE-287, CWE-305
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.00J <=2.93A

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Panasonic · AiSEG2version=2.00J <=2.93A

Published CVSS scores

9.6Panasonic Holdings CorporationCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
5.8JPCERT/CC and IPAAV:A/AC:L/Au:N/C:P/I:P/A:P
9.6JPCERT/CC and IPACVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-305Authentication Bypass by Primary Weakness

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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