Buffer overflow in Foxit Reader
CVE-2021-31454
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. 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 the Decimal element. A crafted leadDigits value in a Decimal element can trigger an overflow of a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute arbitrary code in the context of the current process. Was ZDI-CAN-13095.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.025 (84.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Foxit Reader — versions 10.1.1.37576
- Foxitsoftware Foxit Reader
- Foxitsoftware Phantompdf
- Microsoft Windows
Weakness classification (CWE)
References
- www.foxitsoftware.com/support/security-bulletins.php (Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-543/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31454?
- CVE-2021-31454 is a high-severity vulnerability in Foxit Reader, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2021-05-07.
- How severe is CVE-2021-31454?
- High severity. CVSS v3 base score is 7.8 out of 10.