THREATPORT/VULNERABILITY/CVE-2021-27271
HIGH SEVERITY

CVE-2021-27271

Foxit Reader vulnerability

CVSS
7.8
EPSS
3.3%
EPSS pct
87th
Exploited
No known
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 10.1.0.37527. 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 embedded in PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in an out-of-bounds read condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12438.
Affected vendor
Foxitsoftware
Affected product
Foxit Reader
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2021-03-30

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2021-27271

  • Confirm whether Foxitsoftware Foxit Reader is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-27271.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-27271

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-27271 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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