HOMEVULNERABILITIESCVE-2026-5939
MEDIUM

CVE-2026-5939

CWE-416Published: April 27, 2026· Updated: Apr 29, 2026

5.5
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:3.1th

Official Description

A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution.

NVD Source

Technical Analysis

CVE-2026-5939 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

foxit2 products
pdf editorpdf reader
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.foxit.com/support/security-bulletins.html

All References (1)

→
https://www.foxit.com/support/security-bulletins.htmlVendor Advisory

Quick Facts

CVE IDCVE-2026-5939
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-416
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedApr 27, 2026

Related CVEs (CWE-416)

CVE-2026-13782
10.0
CVE-2026-25959
9.8
CVE-2026-25952
9.8
CVE-2026-25983
9.8
CVE-2026-6722
9.8
CVE-2026-25997
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-5939 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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