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CVE-2019-20805

MEDIUM
5.5
CVSS Score
Published: June 1, 2020 at 01:50 PM UTC
Updated: June 17, 2026 at 02:31 AM UTC
1 product affected across 1 vendorUpx

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.8%

Description

p_lx_elf.cpp in UPX before 3.96 has an integer overflow during unpacking via crafted values in a PT_DYNAMIC segment.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Upx· Upx
95%
v < 3.96
Affected range stops below 3.96, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/upx/upx/commit/8be9da8280dfa69d5df4417d4d81bda1cab78010
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/upx/upx/issues/317

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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