CVE-2023-29080

Privilege escalation in InstallShield

HIGH
8.5
CVSS Score
Published: January 30, 2025 at 05:41 PM UTC
Updated: June 17, 2026 at 05:49 AM UTC
1 product affected across 1 vendorInstallShield

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Severity
HIGH8.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Potential privilege escalation vulnerability in Revenera InstallShield versions 2022 R2 and 2021 R2 due to adding InstallScript custom action to a Basic MSI or InstallScript MSI project extracting few binaries to a predefined writable folder during installation time. The standard user account has write access to these files and folders, hence replacing them during installation time can lead to a DLL hijacking vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2021 R2 ≤ v < 2021 R2 (27.0.0.126)2022 R2 ≤ v < 2022 R2 (28.0.0.763)2021 R22022 R2
Affected range stops below 2021 R2 (27.0.0.126), so it looks safe — our inference, not a vendor statement
Affected range stops below 2022 R2 (28.0.0.763), so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHflexera
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-552

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