CVE-2021-42255
BeyondTrust AppGuard Enterprise through 6.6.20.2 creates a Temporary File in a Directory with...
AppGuard Enterprise before 6.7.100.1 creates a Temporary File in a Directory with Insecure Permissions. Local users can gain SYSTEM privileges because a repair operation relies on the %TEMP% directory of an unprivileged user.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
AppGuard Enterprise before 6.7.100.1 creates a Temporary File in a Directory with Insecure Permissions. Local users can gain SYSTEM privileges because a repair operation relies on the %TEMP% directory of an unprivileged user.
- Record
CVE-2021-42255- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.2 High
AV:L/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-668
- Updated
- 2026-11-02
CVE List No score
AppGuard Enterprise before 6.7.100.1 creates a Temporary File in a Directory with Insecure Permissions. Local users can gain SYSTEM privileges because a repair operation relies on the %TEMP% directory of an unprivileged user.
- Record
CVE-2021-42255- Updated
- 2026-11-02
EUVDEUVD-2021-29231 No score
AppGuard Enterprise before 6.7.100.1 creates a Temporary File in a Directory with Insecure Permissions. Local users can gain SYSTEM privileges because a repair operation relies on the %TEMP% directory of an unprivileged user.
- Record
EUVD-2021-29231- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pxfj-vmhh-m9gm
BeyondTrust AppGuard Enterprise through 6.6.20.2 creates a Temporary File in a Directory with...
BeyondTrust AppGuard Enterprise through 6.6.20.2 creates a Temporary File in a Directory with Insecure Permissions.
- Record
GHSA-pxfj-vmhh-m9gm- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-668
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-42255 is a high vulnerability (CVSS 7.8) in Blueplanet-works Appguard, published April 12, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.