Foxit Reader 10.1.1.37576 Annotation Object use after free
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.0 | $0-$5k | 0.00 |
Summary
A vulnerability described as critical has been identified in Foxit Reader 10.1.1.37576. This affects an unknown function of the component Annotation Object Handler. The manipulation results in use after free. This vulnerability is reported as CVE-2021-31451. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.
Details
A vulnerability was found in Foxit Reader 10.1.1.37576 (Document Reader Software). It has been classified as critical. Affected is an unknown code block of the component Annotation Object Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was disclosed 05/08/2021. The advisory is shared for download at zerodayinitiative.com. This vulnerability is traded as CVE-2021-31451. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.
Upgrading to version 10.1.4 eliminates this vulnerability.
Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.foxitsoftware.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Use after freeCWE: 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 |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Reader 10.1.4
Timeline
04/16/2021 🔍05/08/2021 🔍
05/08/2021 🔍
05/04/2026 🔍
Sources
Vendor: foxitsoftware.comAdvisory: zerodayinitiative.com
Status: Confirmed
CVE: CVE-2021-31451 (🔍)
GCVE (CVE): GCVE-0-2021-31451
GCVE (VulDB): GCVE-100-174732
Entry
Created: 05/08/2021 10:06Updated: 05/04/2026 19:02
Changes: 05/08/2021 10:06 (36), 05/12/2021 18:23 (2), 05/12/2021 18:30 (1), 05/04/2026 18:59 (2), 05/04/2026 19:02 (20)
Complete: 🔍
Committer: lywand
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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