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CVE-2020-36440

25
FAUCET Score

CVE-2020-36440 describes a vulnerability in the Rust libsbc crate, specifically affecting versions prior to 0.1.5, where the Decoder<R> implementation incorrectly allows Send for any R: Read. This flaw is rated with a CVSS score of 8.1 (HIGH), indicating a critical risk due to its network-based attack vector, high impact on confidentiality, integrity, and availability, and low attack complexity. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.1.5CPE matchmatch criteria
cpe:2.3:a:libsbc_project:libsbc:*:*:*:*:*: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
0.77%
Probability of exploitation in next 30 days
EPSS Percentile
51.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0077 is in the 20th 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

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: libsbcFixed in: 0.1.5

Vendor Advisories (1)

rustGHSA-f6g6-54hm-fhxvhigh

Data races in libsbc

Aug 25, 2021

References

raw.githubusercontent.com / rustsec/advisory-db/main/crates/libsbc/RUSTSEC-2020-0120.md
Third Party Advisory
rustsec.org / advisories/RUSTSEC-2020-0120.html
Third Party Advisory