Information disclosure via uninitialized C5V parser pointer
Published Apr 12, 2022 · Updated Apr 16, 2025
Uninitialized-pointer access in Fuji Electric ALPHA5 before 4.3 allows remote attackers to disclose process data through a crafted C5V file. The C5V file parser accesses a pointer without properly initializing it before use, allowing memory contents to be exposed. Exploitation requires a target to open a malicious file or visit a malicious page; the reported direct impact is disclosure in the current process, while code execution requires chaining another flaw.
Summary
What happened
Uninitialized-pointer access in Fuji Electric ALPHA5 before 4.3 allows remote attackers to disclose process data through a crafted C5V file. The C5V file parser accesses a pointer without properly initializing it before use, allowing memory contents to be exposed. Exploitation requires a target to open a malicious file or visit a malicious page; the reported direct impact is disclosure in the current process, while code execution requires chaining another flaw.
The record
- CVE
- CVE-2022-21168
- Published
- Apr 12, 2022
- Updated
- Apr 16, 2025
- Vendor
- Fuji Electric
- Product
- ALPHA5
- Classifications
- CWE-824, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 12, 2022CVE publishedPublication date reported by the CVE source.
- Apr 16, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=All <4.3
What conditions does exploitation require?
What is affected?
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.
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
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo