Is CVE-2021-3673 in the CISA KEV catalog?

No. CVE-2021-3673 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3673?

CVE-2021-3673 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-3673?

CVE-2021-3673 has an EPSS score of 1.80% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3673?

Upgrade radare2 on debian unstable to 5.5.0+dfsg-1 or later.

CVE & CISA-KEV Catalog

CVE-2021-3673

HIGHEPSS 76th pctl

7.5

CVSS v3

NVD

Description

A vulnerability was found in Radare2 in version 5.3.1. Improper input validation when reading a crafted LE binary can lead to resource exhaustion and DoS.

CWE-20Improper Input Validation CWE-252

How to fix

Remediation Available

radare2Debian

Fixed in:5.5.0+dfsg-1CVE-2021-3673

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.80%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Other references5

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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.