PULSE
ES
FEED
vulnKEV agrega CVE-2026-93952 — Arista / VeloCloud OrchestratorvulnKEV agrega CVE-2026-94127 — F5 / BIG-IP APMvulnKEV agrega CVE-2026-93616 — Check Point / Multiple ProductsvulnKEV agrega CVE-2026-85102 — Check Point / Multiple ProductsvulnKEV agrega CVE-2026-7273 — Zyxel / GS1900 Series SwitchesvulnKEV agrega CVE-2025-39964 — Linux / KernelvulnKEV agrega CVE-2026-53266 — Linux / KernelvulnKEV agrega CVE-2025-39682 — Linux / KernelvulnKEV agrega CVE-2026-58704 — Google / PixelvulnKEV agrega CVE-2026-76460 — Cisco / Identity Services EnginevulnKEV agrega CVE-2026-87886 — Acronis / BackupvulnKEV agrega CVE-2026-76461 — Cisco / Secure Email GatewayvulnKEV agrega CVE-2026-84869 — ConnectWise / ScreenConnectvulnKEV agrega CVE-2026-42016 — JFrog / ArtifactoryvulnKEV agrega CVE-2026-93952 — Arista / VeloCloud OrchestratorvulnKEV agrega CVE-2026-94127 — F5 / BIG-IP APMvulnKEV agrega CVE-2026-93616 — Check Point / Multiple ProductsvulnKEV agrega CVE-2026-85102 — Check Point / Multiple ProductsvulnKEV agrega CVE-2026-7273 — Zyxel / GS1900 Series SwitchesvulnKEV agrega CVE-2025-39964 — Linux / KernelvulnKEV agrega CVE-2026-53266 — Linux / KernelvulnKEV agrega CVE-2025-39682 — Linux / KernelvulnKEV agrega CVE-2026-58704 — Google / PixelvulnKEV agrega CVE-2026-76460 — Cisco / Identity Services EnginevulnKEV agrega CVE-2026-87886 — Acronis / BackupvulnKEV agrega CVE-2026-76461 — Cisco / Secure Email GatewayvulnKEV agrega CVE-2026-84869 — ConnectWise / ScreenConnectvulnKEV agrega CVE-2026-42016 — JFrog / Artifactory
← All CVEs
CVE WatchSep 23, 2026

CVE-2026-91817

A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of wide strings in embedded PDF JavaScript. Insuf

CVSS

6.1

Medium

EPSS

—

KEV

—

Exploit Today

—

0-100

Published: Sep 23, 2026 · Last modified: Sep 23, 2026 · CWE-125

EPSS · 30d

Not enough EPSS history yet.

Technical description

A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of wide strings in embedded PDF JavaScript. Insufficient validation of string-deletion ranges can cause an integer underflow, resulting in an out-of-bounds read and application crash.

Official references
Related CVEs
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-79616—
—
———Out-of-bounds read while parsing untrusted SVG path strings in Qt Quick's Context2D.path / PathSvg.path.6hCVE-2026-918106.1 MED
—
———A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of malformed PDF image masks. Inconsistent image metadata may cause incorrect alpha-channel processing during rendering, resulting in an out-of-bounds read and application crash.8hCVE-2026-918086.1 MED
—
———A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor Reader’s handling of PDF image objects with inconsistent compression metadata. Insufficient validation during image decoding may result in an undersized buffer and an out-of-bounds read during rendering, causing an application crash.8hCVE-2026-918076.1 MED
—
———A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of malformed image soft-mask data. Insufficient validation of the soft-mask data attribute during image parsing may cause an arithmetic underflow, resulting in an out-of-bounds read and application crash.8hCVE-2026-775587.5 HIG
—
——0A malicious actor with access to the network could exploit an Out-of-bounds Read vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.20hCVE-2026-775567.5 HIG
—
——0A malicious actor with access to the network could exploit an Out-of-bounds Read vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.20h