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CVE-2020-36203

17
FAUCET Score

CVE-2020-36203 is a data race and memory corruption vulnerability affecting the 'reffers' crate for Rust, specifically versions through 2020-12-01. This issue arises when an ARefss object contains a !Send,!Sync object, leading to potential system instability. Rated as MEDIUM severity (CVSS 4.7), exploitation requires local access with high attack complexity, primarily impacting availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2020-12-01CPE matchmatch criteria
cpe:2.3:a:reffers_project:reffers:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

4.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 58th percentile among its peer group of 1,297 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: reffersFixed in: 0.6.1

Vendor Advisories (1)

rustGHSA-39xg-8p43-h76xmedium

Data races in reffers

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2020-0094.html
ExploitVendor Advisory