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CVE-2020-36464

24
FAUCET Score

CVE-2020-36464 is a heap-related vulnerability affecting the heapless crate before version 0.6.1 for Rust, specifically impacting the heapless_project. The flaw lies in the IntoIter Clone implementation, which incorrectly clones an entire underlying Vec even if it has been partially consumed. This vulnerability carries a CVSS score of 7.5 (High), indicating a network-based attack with low complexity that could lead to a high impact on availability. There is currently 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
< 0.6.1CPE matchmatch criteria
cpe:2.3:a:heapless_project:heapless:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.23%
Probability of exploitation in next 30 days
EPSS Percentile
65.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0123 is in the 45th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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: heaplessFixed in: 0.6.1

Vendor Advisories (1)

rustGHSA-qgwf-r2jj-2ccvhigh

Use after free in heapless

Aug 25, 2021

References

raw.githubusercontent.com / rustsec/advisory-db/main/crates/heapless/RUSTSEC-2020-0145.md
Third Party Advisory
rustsec.org / advisories/RUSTSEC-2020-0145.html
ExploitIssue TrackingPatchThird Party Advisory