CVE-2023-40477

RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector : AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aa	Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-23-1152/	Third Party Advisory VDB Entry
https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aa	Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-23-1152/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:*

History

20 Jun 2025, 18:13

Type	Values Removed	Values Added
References	~~() https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aa -~~	() https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aa - Release Notes
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-23-1152/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-23-1152/ - Third Party Advisory, VDB Entry
First Time		Rarlab Rarlab winrar
CPE		cpe:2.3:a:rarlab:winrar::::::::

Information

Published : 2024-05-03 03:15

Updated : 2025-06-20 18:13

NVD link : CVE-2023-40477

Mitre link : CVE-2023-40477

CVE.ORG link : CVE-2023-40477

JSON object : View

Products Affected

rarlab

winrar

CWE

CWE-129

Improper Validation of Array Index

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