Search/CVE-2026-91817
● CVE — Medium

CVE-2026-91817

VendorfoxitProductpdf reader, pdf editorDiscoveredSep 23, 2026UpdatedOct 1, 2026

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.

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CVSS v3.1
6.1 MEDIUM
EPSS
0.15%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Sep 24, 2026 → Oct 26, 2026
● 0.00pp
0.15% → 0.15% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
ScopeUNCHANGED
ConfidentialityLOW
IntegrityNONE
AvailabilityHIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Connections
3 relationships
Timeline
disclosure → media coverage
Sep 23, 2026
Disclosure — published as a CVE record. · last revised by NVD Oct 1, 2026