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CVE-2020-18900

LOW
3.3
CVSS Score
Published: August 19, 2021 at 09:20 PM UTC
Updated: June 17, 2026 at 02:59 AM UTC
1 product affected across 1 vendorLibexe

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Severity
LOW3.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

A heap-based buffer overflow in the libexe_io_handle_read_coff_optional_header function of libyal libexe before 20181128. NOTE: the vendor has disputed this as described in libyal/libexe issue 1 on GitHub

Affected

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

Libexe· Libexe Project
95%
v < 20181128
Affected range stops below 20181128, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/libyal/libexe/issues/1

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOWCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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