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.
CVE-2021-3673
HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 7.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 76.2%
- KEV
- Not listed
Published
August 2, 2021
Last Modified
November 21, 2024
References (12)
- patrick@puiterwijkhttps://bugzilla.redhat.com/show_bug.cgi?id=1989130
- patrick@puiterwijkhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IQIRJ72UALGMSWH6MYPVJQQLXFGZ23RS/
- patrick@puiterwijkhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIARALLVVY2362AYFSFULTZKIW6QO5R5/
- patrick@puiterwijkhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NFQPEPMLAOQNGZG5OHSPZBNONGG4DDJO/
- patrick@puiterwijkhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKGIB52R4XPCPNEW6GF56EHW7ST24IJU/
- patrick@puiterwijkhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XGOU2EFE7YK2YDRNFV6QFUWW2SL2GGQA/
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1989130
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IQIRJ72UALGMSWH6MYPVJQQLXFGZ23RS/
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIARALLVVY2362AYFSFULTZKIW6QO5R5/
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NFQPEPMLAOQNGZG5OHSPZBNONGG4DDJO/
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKGIB52R4XPCPNEW6GF56EHW7ST24IJU/
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XGOU2EFE7YK2YDRNFV6QFUWW2SL2GGQA/
Frequently asked(5)
What is CVE-2021-3673?
CVE-2021-3673 is a high vulnerability published on August 2, 2021. 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.
When was CVE-2021-3673 disclosed?
CVE-2021-3673 was first published in the National Vulnerability Database on August 2, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-3673 actively exploited?
CVE-2021-3673 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-3673?
CVE-2021-3673 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-3673?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-3673, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-3673
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