OpenS100 753cf29 Portrayal Engine luaL_openlibs routine

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenS100 753cf29. It has been classified as very critical. Affected by this issue is the function luaL_openlibs of the component Portrayal Engine. Performing a manipulation results in routine. This vulnerability is identified as CVE-2026-22208. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in OpenS100 753cf29. It has been classified as very critical. This affects the function luaL_openlibs of the component Portrayal Engine. The manipulation with an unknown input leads to a routine vulnerability. CWE is classifying the issue as CWE-749. The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

OpenS100 (the reference implementation S-100 viewer) prior to commit 753cf29 contains a remote code execution vulnerability via an unrestricted Lua interpreter. The Portrayal Engine initializes Lua using luaL_openlibs() without sandboxing or capability restrictions, exposing standard libraries such as 'os' and 'io' to untrusted portrayal catalogues. An attacker can provide a malicious S-100 portrayal catalogue containing Lua scripts that execute arbitrary commands with the privileges of the OpenS100 process when a user imports the catalogue and loads a chart.

The weakness was released by Hoyeon Cho. The advisory is shared at mdpi.com. This vulnerability is uniquely identified as CVE-2026-22208 since 01/06/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/27/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 9.2
VulDB Meta Temp Score: 9.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.6
CNA Vector (VulnCheck): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Routine
CWE: CWE-749
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/06/2026 CVE reserved
02/17/2026 +42 days Advisory disclosed
02/17/2026 +0 days VulDB entry created
05/27/2026 +99 days VulDB entry last update

Sourcesinfo

Advisory: mdpi.com
Researcher: Hoyeon Cho
Status: Not defined

CVE: CVE-2026-22208 (🔒)
GCVE (CVE): GCVE-0-2026-22208
GCVE (VulDB): GCVE-100-346281

Entryinfo

Created: 02/17/2026 15:54
Updated: 05/27/2026 02:06
Changes: 02/17/2026 15:54 (65), 02/18/2026 09:04 (12), 05/27/2026 02:06 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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