CVE-2026-107734High· 7.1▾ MidnightPoC availableSumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, an attacker-controlled SyncTeX source filename is substituted for the %f placeholder in an external editor command line without safe Windows argument quoting, and the…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 39.1 · likelihood 0 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 10.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.1%
Exploit / PoC code exists
— → 7.1
none → high
0.1% → 0.2%
SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, an attacker-controlled SyncTeX source filename is substituted for the %f placeholder in an external editor command line without safe Windows argument quoting, and the resulting command line is passed to CreateProcessW(). A user with an external editor configured or auto-detected who opens a PDF with a crafted .synctex.gz file and invokes inverse search can inject command-line flags; the resulting impact depends on the target editor interpreting those flags and can include unintended editor actions or code execution through a malicious extension. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-107802High· 7.1SumatraPDF is a multi-format reader for Windows
CVE-2026-107737Medium· 5.7SumatraPDF is a multi-format reader for Windows
CVE-2026-107733Medium· 6.8SumatraPDF is a multi-format reader for Windows
CVE-2026-107735Medium· 5.4SumatraPDF is a multi-format reader for Windows
CVE-2026-26054Medium· 6.8SumatraPDF is a multi-format reader for Windows
CVE-2026-107738Medium· 6.8SumatraPDF is a multi-format reader for Windows