CVE-2026-57246: Buffer Copy without Checking Size of Input (CWE-120) in Foxit Software Inc. Foxit PDF Editor
When dealing with abnormally constructed objects, there is a lack of argument validation; JavaScript triggers signature verification, but the signature plugin does not perform validation when copying the abnormal string, causing the application to crash.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-57246) in Foxit PDF Editor involves a lack of argument validation in the signature plugin when processing abnormally constructed objects. Specifically, during JavaScript-triggered signature verification, the plugin copies an abnormal string without checking its size, resulting in a buffer copy without size checking (CWE-120). This can cause the application to crash and potentially lead to further impact given the high CVSS score.
Potential Impact
The vulnerability can cause the Foxit PDF Editor application to crash due to improper handling of abnormal input during signature verification. The CVSS score of 7.8 indicates high impact on confidentiality, integrity, and availability, suggesting potential for significant disruption or exploitation if leveraged.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround has been published by Foxit Software Inc. at this time.
CVE-2026-57246: Buffer Copy without Checking Size of Input (CWE-120) in Foxit Software Inc. Foxit PDF Editor
Description
When dealing with abnormally constructed objects, there is a lack of argument validation; JavaScript triggers signature verification, but the signature plugin does not perform validation when copying the abnormal string, causing the application to crash.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-57246) in Foxit PDF Editor involves a lack of argument validation in the signature plugin when processing abnormally constructed objects. Specifically, during JavaScript-triggered signature verification, the plugin copies an abnormal string without checking its size, resulting in a buffer copy without size checking (CWE-120). This can cause the application to crash and potentially lead to further impact given the high CVSS score.
Potential Impact
The vulnerability can cause the Foxit PDF Editor application to crash due to improper handling of abnormal input during signature verification. The CVSS score of 7.8 indicates high impact on confidentiality, integrity, and availability, suggesting potential for significant disruption or exploitation if leveraged.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround has been published by Foxit Software Inc. at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Foxit
- Date Reserved
- 2026-06-24T03:01:15.649Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4e27ebc9d9e3dbe3eaeba4
Added to database: 07/08/2026, 10:35:23 UTC
Last enriched: 07/15/2026, 12:21:59 UTC
Last updated: 08/22/2026, 22:52:14 UTC
Views: 41
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