CVE-2021-47795Known exploitationPublic exploitNetwork attack vector

Unauthenticated file disclosure via path traversal

Published Jan 15, 2026 · Updated Jan 15, 2026

Path traversal in GeoVision GeoWebServer 5.3.3 and earlier allows remote attackers to read local files through crafted HTTP requests. The WebStrings.srf handler accepts traversal sequences in its file parameter, and the /Visitor route decodes double-encoded traversal without restricting the resolved path. Exploitation requires network access to the web service but no authentication, and the demonstrated consequence is disclosure of Windows files such as win.ini.

CVSS severity8.7
High
EPSS probability2.86%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in GeoVision GeoWebServer 5.3.3 and earlier allows remote attackers to read local files through crafted HTTP requests. The WebStrings.srf handler accepts traversal sequences in its file parameter, and the /Visitor route decodes double-encoded traversal without restricting the resolved path. Exploitation requires network access to the web service but no authentication, and the demonstrated consequence is disclosure of Windows files such as win.ini.

The record

CVE
CVE-2021-47795
Published
Jan 15, 2026
Updated
Jan 15, 2026
Vendor
GeoVision
Product
GeoWebServer
Classifications
CWE-22, T1190, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 15, 2026Record 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=<= 5.3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GeoVision · GeoWebServerversion=<= 5.3.3

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.2VulnCheckCVSS:3.1/AV:L/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 exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('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.

Reported exploitation

Technologies

Your stack

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Your stack

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