CVE-2021-42383
HIGH
7.2
CVSS Score
Published: November 15, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 04:09 AM UTC
2 products affected across 2 vendorsFedoraBusyBox
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Severity
HIGH7.2
Exploit prediction
EPSS 2%
SSVC
No known exploit
Description
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the evaluate function
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (5)
Third Party Advisory
Source: [email protected]
https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20211223-0002/SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.2HIGHCISA-ADP
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-416
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