Cyber Resilience

CVE-2020-35198

Critical

Published: 12 May 2021

Published
12 May 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0134 80.5th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-35198 is a critical-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Windriver Vxworks. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 19.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

size specified by the arguments, leading to memory corruption.

CWE(s)
CWE-190

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

windriver
vxworks
6.9.4.12 · 6.9 — 6.9.4.12 · 7.0 — 21.03
oracle
communications eagle
46.7.0 · 46.8.0 — 46.8.2 · 46.9.1 — 46.9.3

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References