CVE-2021-20285
MEDIUM
6.6
CVSS Score
Published: March 26, 2021 at 04:35 PM UTC
Updated: June 17, 2026 at 03:33 AM UTC
1 product affected across 1 vendorUpx
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Severity
MEDIUM6.6
Exploit prediction
EPSS 0.8%
Description
A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1937787x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/upx/upx/issues/421CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-119CWE-787
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