CVE-2026-3779 json
Foxit PDF Editor/Reader List Box Calculate Array Use-After-Free Vulnerability
published 2026-04-01 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-17759
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
The application's list box calculate array logic keeps stale references to page or form objects after they are deleted or re-created, which allows crafted documents to trigger a use-after-free when the calculation runs and can potentially lead to arbitrary code execution.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2365 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Foxit Software Inc. Foxit PDF Editor
- Foxit Software Inc. Foxit PDF Reader
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
talosintelligence.com
/vulnerability_reports/TALOS-2026-2365
exploit, third-party-advisory
-
foxit.com
/support/security-bulletins.html
vendor-advisory
Sources
- CVE List CVE-2026-3779
- NVD CVE-2026-3779
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.