Foxit PDF Reader 11.1.0.52543 JavaScript Engine use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Foxit PDF Reader 11.1.0.52543. This impacts an unknown function of the component JavaScript Engine. Executing a manipulation can lead to use after free. This vulnerability appears as CVE-2021-40420. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Foxit PDF Reader 11.1.0.52543 (Document Reader Software) and classified as critical. This vulnerability affects an unknown function of the component JavaScript Engine. 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 02/05/2022 as TALOS-2021-1429. The advisory is shared for download at talosintelligence.com. This vulnerability was named CVE-2021-40420 since 09/01/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/01/2021 🔍
02/05/2022 +157 days 🔍
02/05/2022 +0 days 🔍
05/04/2026 +1549 days 🔍

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: TALOS-2021-1429
Status: Confirmed

CVE: CVE-2021-40420 (🔍)
GCVE (CVE): GCVE-0-2021-40420
GCVE (VulDB): GCVE-100-192388

Entryinfo

Created: 02/05/2022 12:28
Updated: 05/04/2026 09:23
Changes: 02/05/2022 12:28 (39), 02/07/2022 14:45 (1), 05/04/2026 09:20 (1), 05/04/2026 09:23 (20)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

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