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CVE-2022-42421

25
FAUCET Score

CVE-2022-42421 is a critical vulnerability affecting PDF-XChange Editor, allowing remote attackers to execute arbitrary code. The flaw, a write-past-end buffer overflow (CWE-787) in TIF file parsing, requires user interaction, such as opening a malicious file or visiting a malicious page. With a CVSS score of 7.8 (High), successful exploitation grants attackers code execution within the current process context. Currently, there is no public exploit code (Metasploit, Nuclei, ExploitDB) and no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.5.366.0CPE matchmatch criteria
cpe:2.3:a:pdf-xchange:pdf-xchange_editor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 35th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

tracker-software.com / product/pdf-xchange-editor/history
Release NotesVendor Advisory
zerodayinitiative.com / advisories/ZDI-22-1393
Third Party AdvisoryVDB Entry