CVE-2023-33507Public exploitNetwork attack vector

Unauthenticated file disclosure via unrestricted recording path

Published May 31, 2023 · Updated Jan 10, 2025

Arbitrary file read in KramerAV VIA GO² firmware before 4.0.1.1326 allows remote attackers to read arbitrary local files without authentication. The downloadRecording.php endpoint accepts a file query parameter and returns the referenced filesystem path without restricting the requested location. Network access to the device's web interface is sufficient; the flaw discloses file contents but does not itself modify files or execute code.

CVSS severity7.5
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file read in KramerAV VIA GO² firmware before 4.0.1.1326 allows remote attackers to read arbitrary local files without authentication. The downloadRecording.php endpoint accepts a file query parameter and returns the referenced filesystem path without restricting the requested location. Network access to the device's web interface is sufficient; the flaw discloses file contents but does not itself modify files or execute code.

The record

CVE
CVE-2023-33507
Published
May 31, 2023
Updated
Jan 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 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
7.5CISA-ADPCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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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