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CVE-2026-91804

Foxit PDF Editor/Reader Out-of-bounds Write Vulnerability While Rendering

High7.8EPSS 0.17%
Published
Updated
Reserved
Assigned by
Foxit

Description

A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s rendering of Circle annotations with malformed Cloudy appearance streams in specially crafted PDF files. Insufficient validation of the appearance geometry can result in memory corruption and application crashes.

Scores

CVSS scores of CVE-2026-91804, by who scored it
Scored byCVSSScoreVector
FoxitCNA (assigner)3.1High7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVDNVD · Analyzed3.1High7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.17% · top 94% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

Affected products

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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Record last updated .