CVE-2020-35926

Q: How do I fix CVE-2020-35926?

Upgrade nanorand to 0.5.1 or later.

Q: Is CVE-2020-35926 being actively exploited?

Not that we know of. CVE-2020-35926 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.5% is the estimated probability that it will be exploited in the next 30 days. That is higher than 72% of all scored CVEs.

Q: How severe is CVE-2020-35926?

CVE-2020-35926 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2020-35926 affect?

Published advisories record a fix for nanorand (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICALEPSS 72th pctl

9.8

CVSS v3

NVD

Description

An issue was discovered in the nanorand crate before 0.5.1 for Rust. It caused any random number generator (even ChaCha) to return all zeroes because integer truncation was mishandled.

CWE-330 CWE-681

How to fix

Remediation Available

nanorandNVD

Affected:< 0.5.1Fixed in:0.5.1CVE-2020-35926derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.52%probability of exploitation in 30 days

72ndpercentile

Elevated risk: more likely to be exploited than 72% of all known CVEs.

References

Third-Party Advisory1

rustsec.org

Related Vulnerabilities

Other CWE-330 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-5420	Critical	9.8	92%	-	Fix
CVE-2021-34646	Critical	9.8	51%	-	-
CVE-2008-0087	High	7.5	32%	-	-
CVE-2017-6026	Critical	9.1	32%	-	-
CVE-2018-17888	Critical	9.8	30%	-	-
CVE-2020-11901	Critical	9.0	21%	-	Fix

Common questions

How do I fix CVE-2020-35926?

Upgrade nanorand to 0.5.1 or later.

Is CVE-2020-35926 being actively exploited?

Not that we know of. CVE-2020-35926 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.5% is the estimated probability that it will be exploited in the next 30 days. That is higher than 72% of all scored CVEs.

How severe is CVE-2020-35926?

CVE-2020-35926 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2020-35926 affect?

Published advisories record a fix for nanorand (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2020-35926

Markdown

[![CVE-2020-35926](https://tridentstack.com/cve/badge/CVE-2020-35926.svg)](https://tridentstack.com/cve/CVE-2020-35926)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-35926"><img src="https://tridentstack.com/cve/badge/CVE-2020-35926.svg" alt="CVE-2020-35926"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.