CVE-2020-27634
Severity Score
9.1
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Attend
*SSVC
Descriptions
In Contiki 4.5, TCP ISNs are improperly random.
En Contiki 4.5, los ISN de TCP son incorrectamente aleatorios.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-10-22 CVE Reserved
- 2023-10-10 CVE Published
- 2024-09-19 CVE Updated
- 2024-11-11 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-330: Use of Insufficiently Random Values
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01 | Third Party Advisory | |
| https://www.forescout.com | Third Party Advisory | |
| https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks | Third Party Advisory |
| 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 |
| Contiki-ng Search vendor "Contiki-ng" | Contiki-ng Search vendor "Contiki-ng" for product "Contiki-ng" | 4.5 Search vendor "Contiki-ng" for product "Contiki-ng" and version "4.5" | - |
Affected
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