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CVE-2023-27339

20
FAUCET Score

CVE-2023-27339 is an out-of-bounds write vulnerability in PDF-XChange Editor and PDF-XChange PDF-Tools, specifically impacting PNG file parsing. A remote attacker can achieve arbitrary code execution by crafting a malicious PNG file that, when opened by a user, triggers a write past the end of an allocated buffer. This vulnerability carries a CVSS score of 7.8 (High), indicating a significant risk due to its high impact on confidentiality, integrity, and availability, though it requires user interaction (UI:R) and local access (AV:L). Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
9.4.364.0CPE matchmatch criteria
cpe:2.3:a:pdf-xchange:pdf-tools:9.4.364.0:*:*:*:*:*:*:*
9.4.364.0CPE matchmatch criteria
cpe:2.3:a:pdf-xchange:pdf-xchange_editor:9.4.364.0:*:*:*:*:*:*:*

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
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
43.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 43rd percentile among its peer group of 11,621 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 Notes
zerodayinitiative.com / advisories/ZDI-23-351
Third Party Advisory