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CVE-2018-20989

23
FAUCET Score

CVE-2018-20989 describes an integer underflow vulnerability in the untrusted Rust crate prior to version 0.6.2, which can lead to a denial-of-service condition due to a panic. This high-severity vulnerability (CVSS 7.5) is network-exploitable with low attack complexity and no user interaction required, impacting 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
< 0.6.2CPE matchmatch criteria
cpe:2.3:a:untrusted_project:untrusted:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 51st percentile among its peer group of 51,485 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: untrustedFixed in: 0.6.2

Vendor Advisories (1)

rustGHSA-wq8f-46ww-6c2hhigh

Integer underflow in untrusted

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2018-0001.html
Third Party Advisory