VDB-211316 · CVE-2022-37379 · ZDI-22-1051

Foxit PDF Reader AFSpecial_KeystrokeEx 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.
2.8	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Foxit PDF Reader. The affected element is the function AFSpecial_KeystrokeEx. Such manipulation leads to use after free. This vulnerability is documented as CVE-2022-37379. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Foxit PDF Reader (Document Reader Software) (version unknown) and classified as problematic. Affected by this issue is the function AFSpecial_KeystrokeEx. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. The impact remains unknown.

The weakness was released 10/18/2022 as ZDI-22-1051. The advisory is shared for download at zerodayinitiative.com. This vulnerability is handled as CVE-2022-37379 since 08/02/2022. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-40013). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Document Reader Software

Vendor

Foxit

Name

PDF Reader

License

free

Website

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

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.9
VulDB Meta Temp Score: 2.8

VulDB Base Score: 2.9
VulDB Temp Score: 2.8
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: 🔍

Timelineinfo

08/02/2022 🔍
10/18/2022 +77 days 🔍
10/18/2022 +0 days 🔍
06/19/2026 +1340 days 🔍

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: ZDI-22-1051
Status: Confirmed

CVE: CVE-2022-37379 (🔍)
GCVE (CVE): GCVE-0-2022-37379
GCVE (VulDB): GCVE-100-211316
EUVD: 🔍

Entryinfo

Created: 10/18/2022 15:59
Updated: 06/19/2026 06:47
Changes: 10/18/2022 15:59 (37), 06/19/2026 06:47 (13)
Complete: 🔍
Cache ID: 216::103