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CVE-2020-35893

23
FAUCET Score

CVE-2020-35893 describes an off-by-one error in the remove() function of the simple-slab Rust crate prior to version 0.3.3, leading to memory leakage and the dropping of uninitialized memory. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating a high availability impact due to potential denial of service, and can be exploited remotely without authentication. 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
< 0.3.3CPE matchmatch criteria
cpe:2.3:a:simple-slab_project:simple-slab:*:*:*:*:*: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
1.34%
Probability of exploitation in next 30 days
EPSS Percentile
68.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0134 is in the 48th percentile among its peer group of 51,553 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: simple-slabFixed in: 0.3.3

Vendor Advisories (1)

rustGHSA-hqc8-j86x-2764high

Off-by-one error in simple-slab

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2020-0039.html
Third Party Advisory