CVE-2021-21086
CVSS V2 Medium 6.8
CVSS V3 High 7.8
Description
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Out-of-bounds Write vulnerability in the CoolType library. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution 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-2021-21086
- Assigner
- psirt@adobe.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-09-02T16:15:07
- Last Modified Date
- 2021-09-10T17:27:11
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:* | 1 | OR | 17.011.30056 | 17.011.30188 |
| cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:* | 1 | OR | 20.001.30005 | 20.001.30018 |
| cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:* | 1 | OR | 20.006.20042 | 20.013.20074 |
| cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:* | 1 | OR | 17.011.30059 | 17.011.30188 |
| cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:* | 1 | OR | 20.001.30005 | 20.001.300183 |
| cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:* | 1 | OR | 20.006.20042 | 20.013.20074 |
| 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:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat/apsb21-09.html | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-21086 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21086 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:06:09 | Added to TrackCVE | |||
| 2022-12-05 09:33:13 | 2021-09-02T16:15Z | 2021-09-02T16:15:07 | CVE Published Date | updated |
| 2022-12-05 09:33:13 | 2021-09-10T17:27:11 | CVE Modified Date | updated | |
| 2022-12-05 09:33:13 | Analyzed | Vulnerability Status | updated |