VDB-174733 · CVE-2021-31453 · GCVE-0-2021-31453

Foxit Reader 10.1.1.37576 XFA Form use after free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Foxit Reader 10.1.1.37576. This impacts an unknown function of the component XFA Form Handler. This manipulation causes use after free. This vulnerability appears as CVE-2021-31453. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Foxit Reader 10.1.1.37576 (Document Reader Software). It has been declared as critical. Affected by this vulnerability is some unknown processing of the component XFA Form Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 05/08/2021. The advisory is shared at zerodayinitiative.com. This vulnerability is known as CVE-2021-31453. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

Upgrading to version 10.1.4 eliminates this vulnerability.

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Productinfo

Type

Document Reader Software

Vendor

Foxit

Name

Reader

Version

10.1.1.37576

License

free

Website

Vendor: https://www.foxitsoftware.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Reader 10.1.4

Timelineinfo

04/16/2021 🔍
05/08/2021 +22 days 🔍
05/08/2021 +0 days 🔍
05/04/2026 +1822 days 🔍

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: zerodayinitiative.com
Status: Confirmed

CVE: CVE-2021-31453 (🔍)
GCVE (CVE): GCVE-0-2021-31453
GCVE (VulDB): GCVE-100-174733

Entryinfo

Created: 05/08/2021 10:06
Updated: 05/04/2026 22:43
Changes: 05/08/2021 10:06 (36), 05/12/2021 18:37 (2), 05/12/2021 18:44 (1), 05/04/2026 22:40 (2), 05/04/2026 22:43 (20)
Complete: 🔍
Committer: lywand
Cache ID: 216::103