// For flags

CVE-2020-12819

 

Severity Score

5.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel mode is enabled. Arbitrary code execution may be theoretically possible, albeit practically very difficult to achieve in this context

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
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
High
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2020-05-12 CVE Reserved
  • 2024-12-19 CVE Published
  • 2024-12-20 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-122: Heap-based Buffer Overflow
CAPEC
References (1)
URL Tag Source
https://fortiguard.com/advisory/FG-IR-20-082
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Fortinet
Search vendor "Fortinet"
 FortiOS
Search vendor "Fortinet" for product "FortiOS"
 >= 6.4.0 <= 6.4.1
Search vendor "Fortinet" for product "FortiOS" and version " >= 6.4.0 <= 6.4.1"
en
Affected
Fortinet
Search vendor "Fortinet"
 FortiOS
Search vendor "Fortinet" for product "FortiOS"
 >= 6.2.0 <= 6.2.4
Search vendor "Fortinet" for product "FortiOS" and version " >= 6.2.0 <= 6.2.4"
en
Affected
Fortinet
Search vendor "Fortinet"
 FortiOS
Search vendor "Fortinet" for product "FortiOS"
 >= 6.0.0 <= 6.0.10
Search vendor "Fortinet" for product "FortiOS" and version " >= 6.0.0 <= 6.0.10"
en
Affected
Fortinet
Search vendor "Fortinet"
 FortiOS
Search vendor "Fortinet" for product "FortiOS"
 >= 5.6.0 <= 5.6.12
Search vendor "Fortinet" for product "FortiOS" and version " >= 5.6.0 <= 5.6.12"
en
Affected