CVE-2021-42810

SYSTEM code execution via unsafe MSI repair

Published Jan 19, 2022 · Updated Sep 17, 2024

Local privilege escalation in Thales SafeNet Agent for RD Gateway before 2.0.4 allows local users to execute code as SYSTEM. The Windows Installer repair path runs temporary files from the invoking user's TEMP directory under the Windows Installer service's SYSTEM context. Any authenticated local non-admin user who can invoke the cached MSI repair operation can gain temporary SYSTEM-level code execution.

CVSS severity7.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in Thales SafeNet Agent for RD Gateway before 2.0.4 allows local users to execute code as SYSTEM. The Windows Installer repair path runs temporary files from the invoking user's TEMP directory under the Windows Installer service's SYSTEM context. Any authenticated local non-admin user who can invoke the cached MSI repair operation can gain temporary SYSTEM-level code execution.

The record

CVE
CVE-2021-42810
Published
Jan 19, 2022
Updated
Sep 17, 2024
Vendor
Thales Group
Product
SafeNet Authentication Service
Classifications
CWE-335, CWE-336, CWE-379, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Remote Desktop Gateway <2.0.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Thales Group · SafeNet Authentication Serviceversion=Remote Desktop Gateway <2.0.3

Published CVSS scores

7.8Thales GroupCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2NIST NVDAV:L/AC:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-335Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
CWE-336Same Seed in Pseudo-Random Number Generator (PRNG)
CWE-379Creation of Temporary File in Directory with Insecure Permissions
T1068Exploitation for Privilege Escalation

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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