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-2020-35889

24
FAUCET Score

CVE-2020-35889 is a Time-of-Check to Time-of-Use (TOCTOU) memory safety vulnerability affecting the crayon crate for Rust, specifically versions through 2020-08-31. This high-severity vulnerability (CVSS 8.1) allows for remote exploitation with high impact on confidentiality, integrity, and availability, though it requires high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.7.0CPE matchmatch criteria
cpe:2.3:a:crayon_project:crayon:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 22nd percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

rustGHSA-m833-jv95-mfjhhigh

Memory safety violation in crayon

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2020-0037.html
Third Party Advisory