// For flags

CVE-2021-21017

Adobe Acrobat and Reader Heap-based Buffer Overflow Vulnerability

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

Yes
*KEV

Decision

-
*SSVC
Descriptions

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a heap-based buffer overflow 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.

Acrobat Reader DC versiones 2020.013.20074 (y anteriores), versiones 2020.001.30018 (y anteriores) y versiones 2017.011.30188 (y anteriores), están afectadas por una vulnerabilidad de desbordamiento de búfer en la región heap de la memoria. Un atacante no autenticado podría aprovechar esta vulnerabilidad para alcanzar una ejecución de código arbitraria en el contexto del usuario actual. Una explotación de este problema requiere una interacción del usuario, ya que la víctima debe abrir un archivo malicioso

Acrobat Acrobat and Reader contain a heap-based buffer overflow vulnerability that could allow an unauthenticated attacker to achieve code execution in the context of the current user.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-18 CVE Reserved
  • 2021-02-11 CVE Published
  • 2021-02-27 First Exploit
  • 2021-11-03 Exploited in Wild
  • 2021-11-17 KEV Due Date
  • 2024-09-16 CVE Updated
  • 2024-11-13 EPSS Updated
CWE
  • CWE-122: Heap-based Buffer Overflow
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Adobe
Search vendor "Adobe"
Acrobat
Search vendor "Adobe" for product "Acrobat"
>= 17.0 <= 17.011.30188
Search vendor "Adobe" for product "Acrobat" and version " >= 17.0 <= 17.011.30188"
classic
Affected
in Apple
Search vendor "Apple"
Macos
Search vendor "Apple" for product "Macos"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat
Search vendor "Adobe" for product "Acrobat"
>= 17.0 <= 17.011.30188
Search vendor "Adobe" for product "Acrobat" and version " >= 17.0 <= 17.011.30188"
classic
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat
Search vendor "Adobe" for product "Acrobat"
>= 20.0 <= 20.001.30018
Search vendor "Adobe" for product "Acrobat" and version " >= 20.0 <= 20.001.30018"
classic
Affected
in Apple
Search vendor "Apple"
Macos
Search vendor "Apple" for product "Macos"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat
Search vendor "Adobe" for product "Acrobat"
>= 20.0 <= 20.001.30018
Search vendor "Adobe" for product "Acrobat" and version " >= 20.0 <= 20.001.30018"
classic
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat Dc
Search vendor "Adobe" for product "Acrobat Dc"
<= 20.013.20074
Search vendor "Adobe" for product "Acrobat Dc" and version " <= 20.013.20074"
continuous
Affected
in Apple
Search vendor "Apple"
Macos
Search vendor "Apple" for product "Macos"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat Dc
Search vendor "Adobe" for product "Acrobat Dc"
<= 20.013.20074
Search vendor "Adobe" for product "Acrobat Dc" and version " <= 20.013.20074"
continuous
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat Reader
Search vendor "Adobe" for product "Acrobat Reader"
>= 17.0 <= 17.011.30188
Search vendor "Adobe" for product "Acrobat Reader" and version " >= 17.0 <= 17.011.30188"
classic
Affected
in Apple
Search vendor "Apple"
Macos
Search vendor "Apple" for product "Macos"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat Reader
Search vendor "Adobe" for product "Acrobat Reader"
>= 17.0 <= 17.011.30188
Search vendor "Adobe" for product "Acrobat Reader" and version " >= 17.0 <= 17.011.30188"
classic
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat Reader
Search vendor "Adobe" for product "Acrobat Reader"
>= 20.0 <= 20.001.300183
Search vendor "Adobe" for product "Acrobat Reader" and version " >= 20.0 <= 20.001.300183"
classic
Affected
in Apple
Search vendor "Apple"
Macos
Search vendor "Apple" for product "Macos"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat Reader
Search vendor "Adobe" for product "Acrobat Reader"
>= 20.0 <= 20.001.300183
Search vendor "Adobe" for product "Acrobat Reader" and version " >= 20.0 <= 20.001.300183"
classic
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat Reader Dc
Search vendor "Adobe" for product "Acrobat Reader Dc"
<= 20.013.20074
Search vendor "Adobe" for product "Acrobat Reader Dc" and version " <= 20.013.20074"
continuous
Affected
in Apple
Search vendor "Apple"
Macos
Search vendor "Apple" for product "Macos"
--
Safe
Adobe
Search vendor "Adobe"
Acrobat Reader Dc
Search vendor "Adobe" for product "Acrobat Reader Dc"
<= 20.013.20074
Search vendor "Adobe" for product "Acrobat Reader Dc" and version " <= 20.013.20074"
continuous
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe