CVE-2020-35198

CRITICAL EPSS 82.3%
Published May 12, 20215y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published May 12, 2021 5y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
82.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

Affected Products 8

VendorProductVersionRange
windrivervxworks*≥6.9  –  <6.9.4.12
windrivervxworks*≥7.0  –  <21.03
windrivervxworks6.9.4.12any
windrivervxworks6.9.4.12any
windrivervxworks6.9.4.12any
oraclecommunications_eagle*≥46.8.0  –  ≤46.8.2
oraclecommunications_eagle*≥46.9.1  –  ≤46.9.3
oraclecommunications_eagle46.7.0any

References 3

  • support2.windriver.com https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-35198
    Vendor Advisory
  • support2.windriver.com https://support2.windriver.com/index.php?page=security-notices
    Vendor Advisory
  • oracle.com https://www.oracle.com/security-alerts/cpuapr2022.html
    PatchThird Party Advisory

Remediation

  • oracle.com https://www.oracle.com/security-alerts/cpuapr2022.html
    PatchThird Party Advisory