CVE-2026-25880 Untrusted Search Path in SumatraPDF Reader (explorer.exe on Windows)

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, the PDF reader allows execution of a malicious binary explorer.exe located in the same directory as the opened PDF when the user clicks File → “Show in folder”. This behavior leads to arbitrary code execution on the victim’s...

CVE-2026-25880 Untrusted Search Path in SumatraPDF Reader (explorer.exe on Windows)

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, the PDF reader allows execution of a malicious binary explorer.exe located in the same directory as the opened PDF when the user clicks File → “Show in folder”. This behavior leads to arbitrary code execution on the victim’s...

PT-2026-7172

Name of the Vulnerable Software and Affected Versions SumatraPDF versions 3.5.0 through 3.5.2 Description SumatraPDF’s update process has a flaw where TLS hostname verification is disabled INTERNET FLAG IGNORE CERT CN INVALID and installers are executed without signature verification. This allows...

PT-2026-7164

Name of the Vulnerable Software and Affected Versions SumatraPDF versions prior to 3.5.3 Description SumatraPDF, a multi-format reader for Windows, allows execution of a malicious binary, specifically explorer.exe, located in the same directory as an opened PDF file. This occurs when a user click...

sumatrapdf 代码问题漏洞

Sumatrapdf is an open-source PDF reader developed by SumatraPDF Reader. Versions of SumatraPDF 3.5.2 and earlier have code vulnerabilities. These vulnerabilities stem from the PDF reader allowing execution of malicious binary files located in the same directory as the opened PDF, potentially...

sumatrapdf 缓冲区错误漏洞

sumatrapdf is an open-source PDF reader developed by sumatrapdfreader. Versions of sumatrapdf 3.5.2 and earlier have a buffer error vulnerability. This vulnerability stems from heap out-of-bound reading in the MOBI HuffDic decompressor, which may lead to crashes...

PT-2026-7171

Name of the Vulnerable Software and Affected Versions SumatraPDF versions 3.5.2 and earlier Description A heap out-of-bounds read issue exists in SumatraPDF's MOBI HuffDic decompressor. The bounds check within the AddCdicData function does not validate the complete range accessed by the DecodeOne...

sumatrapdf 安全漏洞

Sumatrapdf is an open-source PDF reader developed by SumatraPDF Reader. Versions 3.5.0 to 3.5.2 of SumatraPDF have security vulnerabilities. These vulnerabilities stem from the update mechanism disabling TLS hostname verification and failing to check the installer’s signature, which may allow...

CVE-2026-23951

SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting ...

CVE-2026-23951

SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting ...

CVE-2026-23951 SumatraPDF's Integer Underflow in PalmDbReader Leads to Crash

SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting ...

CVE-2026-23951 SumatraPDF's Integer Underflow in PalmDbReader Leads to Crash

SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting ...

CVE-2026-23951

SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting ...

CVE-2026-23951

SumatraPDF is affected by an off-by-one error in PalmDbReader::GetRecord when opening crafted Mobi files, triggering only with exactly 2 records and causing an integer underflow in the size calculation. This leads to an out-of-bounds heap read that crashes the application. The CVE notes indicate ...

CVE-2026-23951 SumatraPDF's Integer Underflow in PalmDbReader Leads to Crash

SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting ...

sumatrapdf numerical error vulnerability

Sumatrapdf is an open-source PDF reader developed by SumatraPDF Reader. SumatraPDF has a digital error vulnerability; this vulnerability stems from handling specially crafted Mobi files, where a single mistake or integer underflow can lead to out-of-bounds heap access and application crashes...

PT-2026-3887

SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting ...

CVE-2026-23512

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...

CVE-2026-23512

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...

CVE-2026-23512

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...