Vulnerability · Published Feb 13, 2020 · Assigned by zdi

CVE-2020-8856

High 7.8

In plain English

A high-severity use-after-free in PhantomPDF from Foxit. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 19.8% (higher than 97% of all known vulnerabilities).

Severity (CVSS 3.0)7.8High

Exploit odds (30 days)19.8%top 2.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

This vulnerability allows remote atackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.6.0.25608. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of watermarks. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-9640.

Affected products (as reported)

Vendor	Product	Versions
Foxit	PhantomPDF	9.6.0.25608

Weakness: CWE-416 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://www.foxitsoftware.com/support/security-bulletins.php x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-20-212/ x_refsource_MISC