// For flags

CVE-2021-39850

Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Service

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Las versiones 2021.005.20060 (y anteriores), 2020.004.30006 (y anteriores) y 2017.011.30199 (y anteriores) de Acrobat Reader DC están afectadas por una vulnerabilidad de desviación de puntero nulo. Un atacante no autenticado podría aprovechar esta vulnerabilidad para lograr una denegación de servicio de la aplicación en el contexto del usuario actual. La explotación de este problema requiere la interacción del usuario, ya que la víctima debe abrir un archivo malicioso

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-08-23 CVE Reserved
  • 2021-09-29 CVE Published
  • 2024-04-20 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
References (1)
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"
>= 20.001.30005 <= 20.004.30006
Search vendor "Adobe" for product "Acrobat" and version " >= 20.001.30005 <= 20.004.30006"
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"
>= 20.001.30005 <= 20.004.30006
Search vendor "Adobe" for product "Acrobat" and version " >= 20.001.30005 <= 20.004.30006"
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"
>= 20.001.30005 <= 20.004.30006
Search vendor "Adobe" for product "Acrobat Reader" and version " >= 20.001.30005 <= 20.004.30006"
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"
>= 20.001.30005 <= 20.004.30006
Search vendor "Adobe" for product "Acrobat Reader" and version " >= 20.001.30005 <= 20.004.30006"
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"
>= 15.008.20082 <= 21.005.20058
Search vendor "Adobe" for product "Acrobat Dc" and version " >= 15.008.20082 <= 21.005.20058"
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"
>= 15.008.20082 <= 21.005.20058
Search vendor "Adobe" for product "Acrobat Reader Dc" and version " >= 15.008.20082 <= 21.005.20058"
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"
>= 15.008.20082 <= 21.005.20060
Search vendor "Adobe" for product "Acrobat Dc" and version " >= 15.008.20082 <= 21.005.20060"
continuous
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"
>= 15.008.20082 <= 21.005.20060
Search vendor "Adobe" for product "Acrobat Reader Dc" and version " >= 15.008.20082 <= 21.005.20060"
continuous
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"
>= 17.011.30059 <= 17.011.30199
Search vendor "Adobe" for product "Acrobat" and version " >= 17.011.30059 <= 17.011.30199"
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"
>= 17.011.30059 <= 17.011.30199
Search vendor "Adobe" for product "Acrobat" and version " >= 17.011.30059 <= 17.011.30199"
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"
>= 17.011.30059 <= 17.011.30199
Search vendor "Adobe" for product "Acrobat Reader" and version " >= 17.011.30059 <= 17.011.30199"
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"
>= 17.011.30059 <= 17.011.30199
Search vendor "Adobe" for product "Acrobat Reader" and version " >= 17.011.30059 <= 17.011.30199"
classic
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe