Is CVE-2023-27331 in the CISA KEV catalog?

No. CVE-2023-27331 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-27331?

CVE-2023-27331 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-27331?

CVE-2023-27331 has an EPSS score of 3.92% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-27331?

Upgrade Foxit PDF Reader to 12.1.0.15250 or later.

CVE & CISA-KEV Catalog

CVE-2023-27331

HIGHEPSS 89th pctl

7.8

CVSS v3

NVD

Description

Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. 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 Annotation objects. 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-19475.

CWE-416Use After Free

How to fix

Remediation Available

Foxit PDF ReaderWindows application

Affected:12.1.0.15250Fixed in:12.1.0.15250Foxit Software Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

3.92%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Vendor Advisory1

foxit.com

Third-Party Advisory1

zerodayinitiative.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

Embed a live status badge for CVE-2023-27331

Markdown

[![CVE-2023-27331](https://tridentstack.com/cve/badge/CVE-2023-27331.svg)](https://tridentstack.com/cve/CVE-2023-27331)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-27331"><img src="https://tridentstack.com/cve/badge/CVE-2023-27331.svg" alt="CVE-2023-27331"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-08-11.