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CVE-2020-35904

18
FAUCET Score

CVE-2020-35904 is a medium-severity vulnerability affecting the crossbeam-channel Rust crate prior to version 0.4.4, stemming from incorrect assumptions regarding memory allocation and iterator elements. This local attack vector (AV:L) has low complexity (AC:L) and can lead to high availability impact (A:H), potentially causing denial of service. 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
< 0.4.4CPE matchmatch criteria
cpe:2.3:a:crossbeam-channel_project:crossbeam-channel:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 87th percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: crossbeam-channelFixed in: 0.4.4

Vendor Advisories (1)

rustGHSA-m8h8-v6jh-c762medium

Incorrect buffer size in crossbeam-channel

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2020-0052.html
ExploitPatchThird Party Advisory