Foxit Reader up to 9.7.0.29435 AcroForms Annotation Object use after free
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.2 | $0-$5k | 0.00 |
Summary
A vulnerability described as critical has been identified in Foxit Reader. This affects an unknown function of the component AcroForms Handler. The manipulation as part of Annotation Object results in use after free. This vulnerability is identified as CVE-2020-8857. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.
Details
A vulnerability classified as critical has been found in Foxit Reader (Document Reader Software). Affected is an unknown code block of the component AcroForms Handler. The manipulation as part of a Annotation Object 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. CVE summarizes:
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.0.29455. 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 parsing of form Annotation objects within AcroForms. 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-9862.
The weakness was released 02/14/2020. This vulnerability is traded as CVE-2020-8857 since 02/11/2020. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.
Upgrading to version 9.7.0.29455 eliminates this vulnerability.
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Product
Type
Vendor
Name
Version
- 2.0
- 2.2
- 2.2.0.0616
- 2.3
- 2.4.4
- 3
- 3.0
- 3.0.2009.1301
- 3.04
- 3.1
- 3.1.0.0111
- 3.1.0.0824
- 3.1.1
- 3.1.1.0901
- 3.1.1.0928
- 3.1.2.1013
- 3.1.2.1030
- 3.1.3
- 3.1.3.1030
- 3.1.4
- 3.2
- 3.2.0.0303
- 3.2.1
- 3.2.1.0401
- 3.3
- 3.3.1
- 4
- 4.0
- 4.0.0.0619
- 4.1
- 4.1.1
- 4.1.1.0805
- 4.2
- 4.3
- 4.3.1.0218
- 5.0
- 5.0.2
- 5.1.0.1021
- 5.1.3
- 5.1.4.0104
- 5.3
- 5.3.1.0606
- 5.4
- 5.4.0.1031
- 5.4.3.0920
- 5.4.4.1128
- 5.4.5
- 6.1
- 6.1.4
- 7.0.8
- 7.1
- 7.1.3.320
- 7.1.5
- 7.2.1
- 7.2.2
- 7.3.4
- 7.3.4.311
- 8.0
- 8.1
- 8.2.1
- 8.2.1.6871
- 8.3.0.14878
- 8.3.1
- 8.3.1.21155
- 8.3.2.25013
- 9.0.0.29935
- 9.0.1.1049
- 9.0.1.5096
- 9.1
- 9.1.0.5096
- 9.1.5096
- 9.2
- 9.2.0.9297
- 9.3
- 9.3.0.10809
- 9.3.0.10826
- 9.3.10826
- 9.4.0.16811
- 9.4.1.16828
- 9.4.16811
- 9.5
- 9.5.0.20723
- 9.5.0.20733
- 9.6
- 9.6.0.25114
- 9.7
- 9.7.0.29430
- 9.7.0.29435
License
Website
- Vendor: https://www.foxitsoftware.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.2
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CNA Base Score: 7.8
CNA Vector (Zero Day Initiative): 🔍
CVSSv2
| 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: 🔍
NVD Base Score: 🔍
Exploiting
Class: Use after freeCWE: 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: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Reader 9.7.0.29455
Timeline
02/11/2020 🔍02/14/2020 🔍
02/16/2020 🔍
05/12/2025 🔍
Sources
Vendor: foxitsoftware.comAdvisory: zerodayinitiative.com
Status: Confirmed
CVE: CVE-2020-8857 (🔍)
GCVE (CVE): GCVE-0-2020-8857
GCVE (VulDB): GCVE-100-150246
Entry
Created: 02/16/2020 20:06Updated: 05/12/2025 04:26
Changes: 02/16/2020 20:06 (37), 02/16/2020 20:11 (12), 04/01/2024 07:39 (17), 04/01/2024 07:45 (20), 05/12/2025 04:26 (7)
Complete: 🔍
Cache ID: 216::103
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