Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
NVD Vulnerability Details :
CVE-2021-28550
Analyzed
More InfoOfficial Page
Source-psirt@adobe.com
View Known Exploited Vulnerability (KEV) details
Published At-02 Sep, 2021 | 17:15
Updated At-23 Oct, 2025 | 14:51

Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a Use After Free vulnerability. 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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
2021-11-032021-11-17Adobe Acrobat and Reader Use-After-Free VulnerabilityApply updates per vendor instructions.
Date Added: 2021-11-03
Due Date: 2021-11-17
Vulnerability Name: Adobe Acrobat and Reader Use-After-Free Vulnerability
Required Action: Apply updates per vendor instructions.
Metrics
TypeVersionBase scoreBase severityVector
Primary3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Secondary3.09.6CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Primary2.06.8MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.0
Base score: 9.6
Base severity: CRITICAL
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 6.8
Base severity: MEDIUM
Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
CPE Matches

Adobe Inc.
adobe
>>acrobat_dc>>Versions from 15.008.20082(inclusive) to 21.001.20150(inclusive)
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
Adobe Inc.
adobe
>>acrobat_reader_dc>>Versions from 15.008.20082(inclusive) to 21.001.20150(inclusive)
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
Microsoft Corporation
microsoft
>>windows>>-
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Adobe Inc.
adobe
>>acrobat>>Versions from 17.011.30059(inclusive) to 17.011.30194(inclusive)
cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*
Adobe Inc.
adobe
>>acrobat>>Versions from 20.001.30005(inclusive) to 20.001.30020(inclusive)
cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*
Adobe Inc.
adobe
>>acrobat_reader>>Versions from 17.011.30059(inclusive) to 17.011.30194(inclusive)
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*
Adobe Inc.
adobe
>>acrobat_reader>>Versions from 20.001.30005(inclusive) to 20.001.30020(inclusive)
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*
Apple Inc.
apple
>>macos>>-
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Microsoft Corporation
microsoft
>>windows>>-
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Adobe Inc.
adobe
>>acrobat_dc>>Versions from 15.008.20082(inclusive) to 21.001.20149(inclusive)
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
Adobe Inc.
adobe
>>acrobat_reader_dc>>Versions from 15.008.20082(inclusive) to 21.001.20149(inclusive)
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
Apple Inc.
apple
>>macos>>-
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-416Secondarypsirt@adobe.com
CWE ID: CWE-416
Type: Secondary
Source: psirt@adobe.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://helpx.adobe.com/security/products/acrobat/apsb21-29.htmlpsirt@adobe.com
Release Notes
Vendor Advisory
https://helpx.adobe.com/security/products/acrobat/apsb21-29.htmlaf854a3a-2127-422b-91ae-364da2661108
Release Notes
Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28550134c704f-9b21-4f2e-91b3-4a467353bcc0
Third Party Advisory
US Government Resource
Hyperlink: https://helpx.adobe.com/security/products/acrobat/apsb21-29.html
Source: psirt@adobe.com
Resource:
Release Notes
Vendor Advisory
Hyperlink: https://helpx.adobe.com/security/products/acrobat/apsb21-29.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Release Notes
Vendor Advisory
Hyperlink: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28550
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource:
Third Party Advisory
US Government Resource
Change History
0Changes found

Details not found