CVE-2022-37681Public exploitNetwork attack vector

Unauthenticated file disclosure via nextpage path traversal

Published Aug 29, 2022 · Updated Feb 13, 2025

Path traversal in Hitachi Kokusai ISnex camera, encoder, and decoder firmware allows remote attackers to read arbitrary operating-system files. The /ptippage.cgi endpoint accepts a crafted GET nextpage parameter containing relative path sequences and returns the referenced file without enforcing its restricted directory. No authentication or user interaction is required; disclosed files can include sensitive device data such as /etc/shadow.

CVSS severity7.5
High
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Hitachi Kokusai ISnex camera, encoder, and decoder firmware allows remote attackers to read arbitrary operating-system files. The /ptippage.cgi endpoint accepts a crafted GET nextpage parameter containing relative path sequences and returns the referenced file without enforcing its restricted directory. No authentication or user interaction is required; disclosed files can include sensitive device data such as /etc/shadow.

The record

CVE
CVE-2022-37681
Published
Aug 29, 2022
Updated
Feb 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, CAPEC-139, T1190, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5Hitachi, Ltd.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-139Relative Path Traversal
T1190Exploit Public-Facing Application
T1005Data from Local System

Public exploit references

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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