Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2020-35198

30
FAUCET Score

CVE-2020-35198 is a critical vulnerability affecting Wind River VxWorks 7 and Oracle Communications Eagle, stemming from an integer overflow in the memory allocator's calloc() function. This flaw can lead to memory corruption due to undersized memory allocations. With a CVSS score of 9.8 (Critical), it presents a severe risk, allowing unauthenticated remote attackers to achieve high impact on confidentiality, integrity, and availability. Despite its critical severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.9, < 6.9.4.12CPE matchmatch criteria
cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:*
>= 7.0, < 21.03CPE matchmatch criteria
cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:*
6.9.4.12CPE matchmatch criteria
cpe:2.3:o:windriver:vxworks:6.9.4.12:-:*:*:*:*:*:*
6.9.4.12CPE matchmatch criteria
cpe:2.3:o:windriver:vxworks:6.9.4.12:rolling_cumulative_patch_layer1:*:*:*:*:*:*
6.9.4.12CPE matchmatch criteria
cpe:2.3:o:windriver:vxworks:6.9.4.12:rolling_cumulative_patch_layer2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.54%
Probability of exploitation in next 30 days
EPSS Percentile
83.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0254 is in the 74th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

oraclepatch availablevia nvd_reference
View patch

References

support2.windriver.com / index.php
Vendor Advisory
support2.windriver.com / index.php
Vendor Advisory
oracle.com / security-alerts/cpuapr2022.html
PatchThird Party Advisory