CVE-2021-24031
MEDIUM
5.5
CVSS Score
Published: March 4, 2021 at 08:15 PM UTC
Updated: June 17, 2026 at 03:39 AM UTC
1 product affected across 1 vendorZstandard
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.5%
Description
In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCExploitIssue TrackingMailing ListThird Party Advisory
Source: [email protected]
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/facebook/zstd/issues/1630x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.facebook.com/security/advisories/cve-2021-24031CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-277CWE-276
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