CVE-2020-37140Public exploit

Application crash via oversized file-open input

Published Feb 5, 2026 · Updated Feb 5, 2026

Out-of-bounds write in FinalWire EVEREST 5.50.2100 allows local users to crash the application through its report file-open field. The report wizard's Open File field accepts a 450-character string of repeated bytes and writes beyond the intended buffer when Next is selected. Exploitation requires an interactive Windows session and a clipboard paste into the running desktop application, and the demonstrated consequence is process termination only.

CVSS severity4.6
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in FinalWire EVEREST 5.50.2100 allows local users to crash the application through its report file-open field. The report wizard's Open File field accepts a 450-character string of repeated bytes and writes beyond the intended buffer when Next is selected. Exploitation requires an interactive Windows session and a clipboard paste into the running desktop application, and the demonstrated consequence is process termination only.

The record

CVE
CVE-2020-37140
Published
Feb 5, 2026
Updated
Feb 5, 2026
Vendor
FinalWire Ltd.
Product
EVEREST
Classifications
CWE-787, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=5.50.2100

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

FinalWire Ltd. · EVERESTversion=5.50.2100

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.6VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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