CVE-2012-4603

Code execution via crafted remote file

Published Jan 10, 2020 · Updated Aug 6, 2024

Code execution in Citrix Receiver 3.2 and earlier and XenApp Online Plug-in 12.1 and earlier allows remote attackers to execute code through a crafted file. Public advisories do not identify the affected file-processing component or disclose how it mishandles content opened from an SMB or WebDAV file server. Exploitation requires a target to open the file and runs attacker-controlled code in the security context of the logged-on Windows user.

CVSS severity7.8
High
EPSS probability6.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in Citrix Receiver 3.2 and earlier and XenApp Online Plug-in 12.1 and earlier allows remote attackers to execute code through a crafted file. Public advisories do not identify the affected file-processing component or disclose how it mishandles content opened from an SMB or WebDAV file server. Exploitation requires a target to open the file and runs attacker-controlled code in the security context of the logged-on Windows user.

The record

CVE
CVE-2012-4603
Published
Jan 10, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record 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 vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:C/I:C/A:C

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1204.002Malicious File

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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