CVE-2023-33236

criticalpriority · track · 39OT risk · elevatedEPSS 0.010 · 62 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.97% (62nd) EPSS

CVSS 9.8 · critical

Is it mine?

5 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

MXsecurity version 1.0 is vulnearble to hardcoded credential vulnerability. This vulnerability has been reported that can be exploited to craft arbitrary JWT tokens and subsequently bypass authentication for web-based APIs.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMXsecurity Series Softwarecisa_csaf_ot
Moxa has developed a solution to address these vulnerabilities. Users should upgrade to software v1.0.1 or higher.
https://www.moxa.com/en/products/industrial-network-infrastructure/network-management-software/mxsecurity-series?viewmode=0#resources

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@moxa.comexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-798USprimaryCWE-798USCWE-798US

affected products (5)

Products and version ranges known to be affected.

MXsecurity Series Software: Version v1.0all versionscisa_csaf_otUS
Moxa MXsecurity Series Softwareall versionscisa_csaf_otUS
Moxa MXsecurity Series≤ 1.0enisa_euvdEU
Moxa Inc. MXsecurity≤ 1.0.1fstec_bduRU
moxa mxsecurity= 1.0nvdUScpe:2.3:a:moxa:mxsecurity:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1317Moxa MXsecurity: Mehrere SchwachstellenDeutsch2023-05-29csaf · cert_bundDE
Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Moxa MXsecurity ausnutzen, um beliebigen Programmcode auszuführen oder Sicherheitsvorkehrungen zu umgehen.
ICSA-23-145-01Moxa MXsecurity Series2023-05-31icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an unauthorized user to bypass authentication or to execute arbitrary commands on the device.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd cert_bund NVD CVE.org MITRE

published 2023-05-22modified 2026-06-17

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+2277 more

references (5)

External citations — patches, advisories, analysis.

scry

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