CVE-2026-107736 (GCVE-0-2026-107736)

Vulnerability from cvelistv5 – Published: 2026-10-08 22:33 – Updated: 2026-10-09 15:12
VLAI
Title
SumatraPDF: stack buffer overflow while processing EXIF Orientation metadata
Summary
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, MaybeFlipBitmap() asks GDI+ to read the attacker-controlled PropertyTagOrientation size through GetPropertyItem() while supplying only a fixed 64-byte buf on the stack. Opening a crafted TIFF with enough EXIF Orientation values can cause attacker-selected bytes to overwrite stack control data, while tested builds terminate through the stack cookie check. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 14:54 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7619 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
sumatrapdfreader sumatrapdf Affected: <= 3.6.1
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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