#VU68045 Untrusted pointer dereference in PDF-XChange Editor - CVE-2022-42396

Vulnerability identifier: #VU68045

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-42396

CWE-ID: CWE-822

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PDF-XChange Editor
Client/Desktop applications / Office applications

Vendor: PDF-XChange

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing XPS files. A remote attacker can create a specially crafted XPS file, trick the victim into opening it using the affected software, trigger an untrusted pointer dereference and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PDF-XChange Editor: 9.0.350.0 - 9.4.363.0

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External links
https://www.tracker-software.com/product/pdf-xchange-editor/history
https://www.zerodayinitiative.com/advisories/ZDI-22-1332/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.