Foxit PDF Reader AcroForm Signature use after free

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

Summaryinfo

A vulnerability categorized as critical has been discovered in Foxit PDF Reader. This issue affects some unknown processing of the component AcroForm Signature Handler. Such manipulation leads to use after free. This vulnerability is listed as CVE-2023-51552. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Foxit PDF Reader (Document Reader Software) (affected version unknown) and classified as critical. Affected by this issue is an unknown functionality of the component AcroForm Signature Handler. 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Foxit PDF Reader AcroForm Signature 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 Signature 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-22007.

The weakness was presented 12/21/2023 as ZDI-23-1865. The advisory is shared for download at zerodayinitiative.com. This vulnerability is handled as CVE-2023-51552 since 12/20/2023. 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

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: 🔍

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: 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

12/20/2023 🔍
12/21/2023 +1 days 🔍
12/21/2023 +0 days 🔍
08/13/2025 +601 days 🔍

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: ZDI-23-1865
Status: Confirmed

CVE: CVE-2023-51552 (🔍)
GCVE (CVE): GCVE-0-2023-51552
GCVE (VulDB): GCVE-100-248648

Entryinfo

Created: 12/21/2023 07:45
Updated: 08/13/2025 23:25
Changes: 12/21/2023 07:45 (38), 08/13/2025 23:25 (28)
Complete: 🔍
Cache ID: 216::103

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