Buffer overflow in Foxit Phantompdf

CVE-2020-10896

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.7.1.29511. 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 U3D objects in PDF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-10192.

Vulnerability class: Buffer Overflow

EPSS: 0.047 (90.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-10896?
CVE-2020-10896 is a high-severity vulnerability in Foxit Phantompdf, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2020-04-22.
How severe is CVE-2020-10896?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-10896 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.