Foxit PDF Reader 11.0.0.49893 Annotation out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Foxit PDF Reader 11.0.0.49893 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Annotation Handler. Executing a manipulation can lead to out-of-bounds. This vulnerability appears as CVE-2021-34950. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Foxit PDF Reader 11.0.0.49893. It has been declared as critical. This vulnerability affects an unknown code of the component Annotation Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Foxit PDF Reader Annotation Out-Of-Bounds Read 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 proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14396.

The advisory is shared for download at zerodayinitiative.com. This vulnerability was named CVE-2021-34950 since 06/17/2021. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

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

CNA Base Score: 7.8
CNA Vector (Zero Day Initiative): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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

06/17/2021 🔍
05/07/2024 +1055 days 🔍
05/08/2024 +0 days 🔍
08/14/2025 +463 days 🔍

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: ZDI-21-1181
Status: Confirmed

CVE: CVE-2021-34950 (🔍)
GCVE (CVE): GCVE-0-2021-34950
GCVE (VulDB): GCVE-100-263428

Entryinfo

Created: 05/08/2024 01:27
Updated: 08/14/2025 00:03
Changes: 05/08/2024 01:27 (66), 03/31/2025 12:09 (4), 08/14/2025 00:03 (1)
Complete: 🔍
Cache ID: 216::103

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