// For flags

CVE-2020-8961

 

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection feature does not prohibit a write operation from an external process. Thus, code injection can be used to turn off this feature. After that, one can construct an event that will modify a file at a specific location, and pass this event to the driver, thereby defeating the anti-virus functionality.

Se detectó un problema en Avira Free-Antivirus versiones anteriores a 15.0.2004.1825. La funcionalidad Self-Protection no prohíbe una operación de escritura desde un proceso externo. Por lo tanto, una inyección de código puede ser usada para desactivar esta función. Después de eso, se puede construir un evento que modificará un archivo en una ubicación específica y pasar este evento al controlador, lo cual anulará la funcionalidad antivirus.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-02-12 CVE Reserved
  • 2020-04-09 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Avira
Search vendor "Avira"
Free Antivirus
Search vendor "Avira" for product "Free Antivirus"
< 15.0.2004.1825
Search vendor "Avira" for product "Free Antivirus" and version " < 15.0.2004.1825"
-
Affected