Code execution via CIN parser buffer overwrite
Published Nov 22, 2024 · Updated Nov 25, 2024
Out-of-bounds write in IrfanView 4.66 64bit allows remote attackers to execute code by inducing a user to open a crafted CIN file. The CIN parser does not adequately validate user-supplied file data before writing it, allowing a write beyond the end of an allocated buffer. Exploitation requires user interaction with a malicious page or CIN file and runs attacker-controlled code with the privileges of the current process.
Summary
What happened
Out-of-bounds write in IrfanView 4.66 64bit allows remote attackers to execute code by inducing a user to open a crafted CIN file. The CIN parser does not adequately validate user-supplied file data before writing it, allowing a write beyond the end of an allocated buffer. Exploitation requires user interaction with a malicious page or CIN file and runs attacker-controlled code with the privileges of the current process.
The record
- CVE
- CVE-2024-6821
- Published
- Nov 22, 2024
- Updated
- Nov 25, 2024
- Vendor
- IrfanView Software
- Product
- IrfanView
- Classifications
- CWE-787, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 22, 2024CVE publishedPublication date reported by the CVE source.
- Nov 25, 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.
- Affected versionversion=4.66 <4.67
- Affected versionversion=4.66 64bit
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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