Rarlab
Monthly
Out-of-bounds heap write in the RAR5 recovery-volume (.rev) parser of WinRAR, RAR, UnRAR, and unrar.dll (versions before 7.23) lets an attacker corrupt heap memory when a victim runs a recovery, test, or repair operation on a crafted multi-file .rev set. Because subsequent .rev files supply a RecNum value validated only against their own TotalCount and never against the actual RecItems allocation, an attacker-controlled 32-bit value can be written far past the buffer, enabling memory corruption and potential code execution. There is no public exploit identified at time of analysis, but this is the RAR5-path sibling of the previously exploited CVE-2023-40477, and CWE-787 flaws in WinRAR have historically led to reliable RCE.
WinRAR for Windows contains a path traversal vulnerability allowing crafted archives to execute arbitrary code, discovered by ESET and exploited in the wild for targeted attacks.
WinRAR contains a directory traversal vulnerability (CVE-2025-6218, CVSS 7.8) enabling remote code execution when users extract crafted archives. KEV-listed with EPSS 4.7% and public PoC, this vulnerability allows archive files to write outside the extraction directory, placing malicious files in startup folders or other sensitive locations. Given WinRAR's 500+ million user base, this is a high-impact social engineering vector.
RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RARLAB UnRAR before 6.12 on Linux and UNIX allows directory traversal to write to files during an extract (aka unpack) operation, as demonstrated by creating a ~/.ssh/authorized_keys file. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
WinRAR before 5.61 contains a path traversal vulnerability in the ACE archive format handler (UNACEV2.dll) that allows extraction of files to arbitrary locations, enabling persistent malware installation through Startup folder placement.
Path traversal in Rarlab RAR App for Android up to 7.11 Build 127 allows remote attackers to read or write arbitrary files by convincing a user to open a malicious RAR archive. Exploitation is highly complex and requires user interaction. Public proof-of-concept code is available, but the EPSS score of 0.33% indicates a low probability of widespread exploitation; the vendor has fixed the issue in version
Cross-site scripting (XSS) vulnerability in the generate report functionality in Rarlab WinRAR 7.11, allows attackers to disclose user information such as the computer username, generated report. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Issue that bypasses the "Mark of the Web" security warning function for files when opening a symbolic link that points to an executable file exists in WinRAR versions prior to 7.11. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RARLAB WinRAR before 7.00, on Windows, allows attackers to spoof the screen output via ANSI escape sequences, a different issue than CVE-2024-33899. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RARLAB WinRAR before 7.00, on Linux and UNIX platforms, allows attackers to spoof the screen output, or cause a denial of service, via ANSI escape sequences. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
RARLAB WinRAR Mark-Of-The-Web Bypass Vulnerability. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a stack-based buffer over-read in unrarlib.c, related to ExtrFile and stricomp. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The DecodeNumber function in unrarlib.c in unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a NULL pointer dereference flaw triggered by a crafted RAR archive. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a directory traversal vulnerability for RAR v2 archives: pathnames of the form ../[filename] are unpacked into the upper directory. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
libunrar.a in UnRAR before 5.5.7 has a buffer overflow in the Unpack::LongLZ function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the Unpack::Unpack20 function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the EncodeFileName::Decode call within the Archive::ReadHeader15 function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
UnRAR before 5.5.7 allows remote attackers to bypass a directory-traversal protection mechanism via vectors involving a symlink to the . Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Directory Traversal exists in RAR 4.x and 5.x because an unpack operation follows any symlinks, including symlinks contained in the archive. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
The file-execution functionality in WinRAR before 5.30 beta 5 allows local users to gain privileges via a Trojan horse file with a name similar to an extensionless filename that was selected by the. Rated high severity (CVSS 7.4), this vulnerability is no authentication required. No vendor patch available.
Out-of-bounds heap write in the RAR5 recovery-volume (.rev) parser of WinRAR, RAR, UnRAR, and unrar.dll (versions before 7.23) lets an attacker corrupt heap memory when a victim runs a recovery, test, or repair operation on a crafted multi-file .rev set. Because subsequent .rev files supply a RecNum value validated only against their own TotalCount and never against the actual RecItems allocation, an attacker-controlled 32-bit value can be written far past the buffer, enabling memory corruption and potential code execution. There is no public exploit identified at time of analysis, but this is the RAR5-path sibling of the previously exploited CVE-2023-40477, and CWE-787 flaws in WinRAR have historically led to reliable RCE.
WinRAR for Windows contains a path traversal vulnerability allowing crafted archives to execute arbitrary code, discovered by ESET and exploited in the wild for targeted attacks.
WinRAR contains a directory traversal vulnerability (CVE-2025-6218, CVSS 7.8) enabling remote code execution when users extract crafted archives. KEV-listed with EPSS 4.7% and public PoC, this vulnerability allows archive files to write outside the extraction directory, placing malicious files in startup folders or other sensitive locations. Given WinRAR's 500+ million user base, this is a high-impact social engineering vector.
RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RARLAB UnRAR before 6.12 on Linux and UNIX allows directory traversal to write to files during an extract (aka unpack) operation, as demonstrated by creating a ~/.ssh/authorized_keys file. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
WinRAR before 5.61 contains a path traversal vulnerability in the ACE archive format handler (UNACEV2.dll) that allows extraction of files to arbitrary locations, enabling persistent malware installation through Startup folder placement.
Path traversal in Rarlab RAR App for Android up to 7.11 Build 127 allows remote attackers to read or write arbitrary files by convincing a user to open a malicious RAR archive. Exploitation is highly complex and requires user interaction. Public proof-of-concept code is available, but the EPSS score of 0.33% indicates a low probability of widespread exploitation; the vendor has fixed the issue in version
Cross-site scripting (XSS) vulnerability in the generate report functionality in Rarlab WinRAR 7.11, allows attackers to disclose user information such as the computer username, generated report. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Issue that bypasses the "Mark of the Web" security warning function for files when opening a symbolic link that points to an executable file exists in WinRAR versions prior to 7.11. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RARLAB WinRAR before 7.00, on Windows, allows attackers to spoof the screen output via ANSI escape sequences, a different issue than CVE-2024-33899. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RARLAB WinRAR before 7.00, on Linux and UNIX platforms, allows attackers to spoof the screen output, or cause a denial of service, via ANSI escape sequences. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
RARLAB WinRAR Mark-Of-The-Web Bypass Vulnerability. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a stack-based buffer over-read in unrarlib.c, related to ExtrFile and stricomp. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The DecodeNumber function in unrarlib.c in unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a NULL pointer dereference flaw triggered by a crafted RAR archive. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a directory traversal vulnerability for RAR v2 archives: pathnames of the form ../[filename] are unpacked into the upper directory. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
libunrar.a in UnRAR before 5.5.7 has a buffer overflow in the Unpack::LongLZ function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the Unpack::Unpack20 function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the EncodeFileName::Decode call within the Archive::ReadHeader15 function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
UnRAR before 5.5.7 allows remote attackers to bypass a directory-traversal protection mechanism via vectors involving a symlink to the . Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Directory Traversal exists in RAR 4.x and 5.x because an unpack operation follows any symlinks, including symlinks contained in the archive. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
The file-execution functionality in WinRAR before 5.30 beta 5 allows local users to gain privileges via a Trojan horse file with a name similar to an extensionless filename that was selected by the. Rated high severity (CVSS 7.4), this vulnerability is no authentication required. No vendor patch available.