Cyber Resilience

CVE-2023-39495

Medium

Published: 03 May 2024

Published
03 May 2024
Modified
19 May 2025
KEV Added
Patch
CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0021 43.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-39495 is a medium-severity Exposed Dangerous Method or Function (CWE-749) vulnerability in Pdf-Xchange Pdf-Tools. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 43.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

PDF-XChange Editor readFileIntoStream Exposed Dangerous Function Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious…

more

page or open a malicious file. The specific flaw exists within the readFileIntoStream method. The issue results from the exposure of a dangerous function. An attacker can leverage this vulnerability to disclose information in the context of the current user. Was ZDI-CAN-19657.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

pdf-xchange
pdf-tools
9.5.366.0
pdf-xchange
pdf-xchange editor
9.5.366.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-749

Explicitly prohibiting dangerous or unnecessary functions and services prevents exposure of methods that could be directly exploited.

addresses: CWE-749

Minimal functionality removes or avoids exposure of dangerous methods and functions.

References