CVE-2020-35198
CRITICAL
9.8
CVSS Score
Published: May 12, 2021 at 10:55 AM UTC
Updated: June 17, 2026 at 03:13 AM UTC
2 products affected across 2 vendorsVxworksCommunications Eagle
Using N/A by N/A?
Get instant alerts when new vulnerabilities affect N/A - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
Description
An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
6.9 ≤ v < 6.9.4.127.0 ≤ v < 21.036.9.4.126.9.4.12 rolling_cumulative_patch_layer16.9.4.12 rolling_cumulative_patch_layer2
Affected range stops below 21.03, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.9.4.12, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-35198x_refsource_MISCVendor Advisory
Source: [email protected]
https://support2.windriver.com/index.php?page=security-noticesx_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuapr2022.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-190
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card