// For flags

CVE-2021-39521

 

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in libredwg through v0.10.1.3751. A NULL pointer dereference exists in the function bit_read_BB() located in bits.c. It allows an attacker to cause Denial of Service.

Se ha detectado un problema en libredwg versiones hasta 0.10.1.3751. Se presenta una desreferencia de puntero NULL en la funciĆ³n bit_read_BB() ubicada en el archivo bits.c. Permite a un atacante causar una DenegaciĆ³n de Servicio

*Credits: N/A
CVSS Scores
Attack Vector
Network
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
  • 2021-09-20 CVE Published
  • 2024-06-05 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
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
Gnu
Search vendor "Gnu"
Libredwg
Search vendor "Gnu" for product "Libredwg"
<= 0.10.1.3751
Search vendor "Gnu" for product "Libredwg" and version " <= 0.10.1.3751"
-
Affected