CVE-2021-39851
CVSS V2 Medium 4.3
CVSS V3 Medium 5.5
Description
Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Overview
- CVE ID
- CVE-2021-39851
- Assigner
- psirt@adobe.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-09-29T16:15:10
- Last Modified Date
- 2021-10-06T21:08:49
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:* | 1 | OR | 20.001.30005 | 20.004.30006 |
| cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:* | 1 | OR | 20.001.30005 | 20.004.30006 |
| cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:* | 1 | OR | 15.008.20082 | 21.005.20058 |
| cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:* | 1 | OR | 15.008.20082 | 21.005.20058 |
| cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:* | 1 | OR | 15.008.20082 | 21.005.20060 |
| cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:* | 1 | OR | 15.008.20082 | 21.005.20060 |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:* | 1 | OR | 17.011.30059 | 17.011.30199 |
| cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:* | 1 | OR | 17.011.30059 | 17.011.30199 |
| cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat/apsb21-55.html | Release Notes Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-39851 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39851 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:52:17 | Added to TrackCVE | |||
| 2022-12-05 11:30:27 | 2021-09-29T16:15Z | 2021-09-29T16:15:10 | CVE Published Date | updated |
| 2022-12-05 11:30:27 | 2021-10-06T21:08:49 | CVE Modified Date | updated | |
| 2022-12-05 11:30:27 | Analyzed | Vulnerability Status | updated |