CVE-2021-35056

Local code execution via unquoted scheduled-task path

Published Jul 15, 2021 · Updated Aug 4, 2024

Unquoted search path in Unisys Stealth 5.1 before 5.1.025.0 and 6.0 before 6.0.055.0 allows local users to run an unintended executable. A scheduled task stores its executable path without surrounding quotation marks, so Windows can resolve a space-delimited parent-path executable before the intended program. Exploitation requires high local privileges and the ability to place an executable in a searched parent path; successful execution occurs in the scheduled task context.

CVSS severity6.7
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unquoted search path in Unisys Stealth 5.1 before 5.1.025.0 and 6.0 before 6.0.055.0 allows local users to run an unintended executable. A scheduled task stores its executable path without surrounding quotation marks, so Windows can resolve a space-delimited parent-path executable before the intended program. Exploitation requires high local privileges and the ability to place an executable in a searched parent path; successful execution occurs in the scheduled task context.

The record

CVE
CVE-2021-35056
Published
Jul 15, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-428, CAPEC-38, T1574.009
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 15, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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 privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-428Unquoted Search Path or Element
CAPEC-38Leveraging/Manipulating Configuration File Search Paths
T1574.009Path Interception by Unquoted Path

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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