CVE-2021-42376
MEDIUM
5.5
CVSS Score
Published: November 15, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 04:09 AM UTC
19 products affected across 3 vendorsFedoraCloud BackupH700S Firmware
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%
Description
A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.34.01.16.0 ≤ v < 1.34.0
Affected range stops below 1.34.0, so it looks safe — our inference, not a vendor statement
Cloud Backup· NetAppdrupal
95%All versions
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/CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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