ICSA-26-274-03
Vulnerability from csaf_cisa - Published: 2026-10-01 06:00 - Updated: 2026-10-01 06:00Summary
ABB Protection and Control IED Manager PCM600
Notes
Legal Notice and Terms of Use: This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Advisory Summary: Successful exploitation of these vulnerabilities could allow an attacker to escalate privileges or overwrite files.
Critical infrastructure sectors: Energy
Countries/areas deployed: Worldwide
Company headquarters location: Switzerland
Recommended Practices: CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.
Recommended Practices: Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Recommended Practices: Locate control system networks and remote devices behind firewalls and isolating them from business networks.
Recommended Practices: When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
Recommended Practices: CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices: CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices: CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Recommended Practices: Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Recommended Practices: Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
Recommended Practices: CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Recommended Practices: Do not click web links or open attachments in unsolicited email messages.
Recommended Practices: Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Recommended Practices: Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
Recommended Practices: No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.
6.4 (Medium)
Affected products
Known affected
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
ABB Protection and Control IED Manager PCM600: <=2.14
ABB / Protection and Control IED Manager PCM600
|
<=2.14 |
Mitigation
Mitigation
Mitigation
Mitigation
Mitigation
Mitigation
Mitigation
Mitigation
Mitigation
Mitigation
|
5.0 (Medium)
Affected products
Known affected
1 product, the same list as for
CVE-2026-15952
References
21 references
{
"document": {
"acknowledgments": [
{
"names": [
"Abhinav Agarwal"
],
"summary": "reported these vulnerabilities to CISA"
}
],
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Disclosure is not limited",
"tlp": {
"label": "WHITE",
"url": "https://www.cisa.gov/news-events/news/traffic-light-protocol-tlp-definitions-and-usage"
}
},
"lang": "en-US",
"notes": [
{
"category": "legal_disclaimer",
"text": "This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy \u0026 Use policy (https://www.cisa.gov/privacy-policy).",
"title": "Legal Notice and Terms of Use"
},
{
"category": "summary",
"text": "Successful exploitation of these vulnerabilities could allow an attacker to escalate privileges or overwrite files. ",
"title": "Advisory Summary"
},
{
"category": "other",
"text": "Energy",
"title": "Critical infrastructure sectors"
},
{
"category": "other",
"text": "Worldwide",
"title": "Countries/areas deployed"
},
{
"category": "other",
"text": "Switzerland",
"title": "Company headquarters location"
},
{
"category": "general",
"text": "CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Locate control system networks and remote devices behind firewalls and isolating them from business networks.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA also recommends users take the following measures to protect themselves from social engineering attacks:",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Do not click web links or open attachments in unsolicited email messages.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.",
"title": "Recommended Practices"
}
],
"publisher": {
"category": "coordinator",
"contact_details": "central@cisa.dhs.gov",
"name": "CISA",
"namespace": "https://www.cisa.gov/"
},
"references": [
{
"category": "self",
"summary": "ICS Advisory ICSA-26-274-03 JSON",
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-274-03.json"
},
{
"category": "self",
"summary": "ICSA Advisory ICSA-26-274-03 - Web Version",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-274-03"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/topics/industrial-control-systems"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/uscert/ncas/tips/ST04-014"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/secure-our-world/teach-employees-avoid-phishing"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/news-events/news/avoiding-social-engineering-and-phishing-attacks"
}
],
"title": "ABB Protection and Control IED Manager PCM600",
"tracking": {
"current_release_date": "2026-10-01T06:00:00.000000Z",
"generator": {
"date": "2026-09-29T14:31:46.417161Z",
"engine": {
"name": "CISA CSAF Generator",
"version": "1.0.0"
}
},
"id": "ICSA-26-274-03",
"initial_release_date": "2026-10-01T06:00:00.000000Z",
"revision_history": [
{
"date": "2026-10-01T06:00:00.000000Z",
"legacy_version": "Initial",
"number": "1",
"summary": "Initial Publication"
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c=2.14",
"product": {
"name": "ABB Protection and Control IED Manager PCM600: \u003c=2.14",
"product_id": "CSAFPID-0001"
}
}
],
"category": "product_name",
"name": "Protection and Control IED Manager PCM600"
}
],
"category": "vendor",
"name": "ABB"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-15952",
"cwe": {
"id": "CWE-732",
"name": "Incorrect Permission Assignment for Critical Resource"
},
"notes": [
{
"category": "summary",
"text": "A vulnerability exists in the Scheduler Service installed with PCM600. The service executes under the LocalSystem account while permissions are granted to standard PCM600 users through membership in the local users group. An attacker with local access and valid user credentials may exploit this vulnerability to elevate privileges and obtain control of the affected host.",
"title": "Vulnerability Summary"
},
{
"category": "details",
"text": "SSVCv2/E:N/A:N/2026-09-29T06:00:00.000000Z",
"title": "SSVC"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001"
]
},
"references": [
{
"category": "external",
"summary": "cwe.mitre.org",
"url": "https://cwe.mitre.org/data/definitions/732.html"
},
{
"category": "external",
"summary": "www.cve.org",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-15952"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
}
],
"remediations": [
{
"category": "mitigation",
"details": "ABB recommends the following workaround. Although this workaround does not correct the underlying vulnerability, it reduces the risk of privilege escalation.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Configure the appropriate ABBPCMSchedulerService instance to run using the same Windows account that is used to operate PCM600:",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Open Services.msc.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Locate the ABBPCMSchedulerService corresponding to the installed PCM600 version.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Open Properties and select the Log On tab.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "The service should be configured to log on with the same Windows user account that is used for the PCM600 application.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Ensure that this account has the required \"Log on as a service\" privilege.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "When authentication is enabled for the IED, the Scheduler tool must be used with the same Windows account configured as the Scheduler Service logon account.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "For installations using IED security certificates, the PCM600 setting Always trust IED security certifcates must be enabled only when PCM600-to-IED communication takes place in a secure and trusted environment.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "For more information, see ABB security advisory 2NGA003170 and 2NGA003179.",
"product_ids": [
"CSAFPID-0001"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"CSAFPID-0001"
]
}
]
},
{
"cve": "CVE-2026-15953",
"cwe": {
"id": "CWE-22",
"name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
},
"notes": [
{
"category": "summary",
"text": "A vulnerability exists in the processing of PCM600 project archives files. Insufficient validation of archive entry paths may permit path traversal during extraction, potentially allowing files to be written to loca tions outside the intended extraction directory.",
"title": "Vulnerability Summary"
},
{
"category": "details",
"text": "SSVCv2/E:N/A:N/2026-09-29T06:00:00.000000Z",
"title": "SSVC"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001"
]
},
"references": [
{
"category": "external",
"summary": "cwe.mitre.org",
"url": "https://cwe.mitre.org/data/definitions/22.html"
},
{
"category": "external",
"summary": "www.cve.org",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-15953"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N"
}
],
"remediations": [
{
"category": "mitigation",
"details": "ABB recommends the following workaround. Although this workaround does not correct the underlying vulnerability, it reduces the risk of privilege escalation.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Configure the appropriate ABBPCMSchedulerService instance to run using the same Windows account that is used to operate PCM600:",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Open Services.msc.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Locate the ABBPCMSchedulerService corresponding to the installed PCM600 version.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Open Properties and select the Log On tab.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "The service should be configured to log on with the same Windows user account that is used for the PCM600 application.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Ensure that this account has the required \"Log on as a service\" privilege.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "When authentication is enabled for the IED, the Scheduler tool must be used with the same Windows account configured as the Scheduler Service logon account.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "For installations using IED security certificates, the PCM600 setting Always trust IED security certifcates must be enabled only when PCM600-to-IED communication takes place in a secure and trusted environment.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "For more information, see ABB security advisory 2NGA003170 and 2NGA003179.",
"product_ids": [
"CSAFPID-0001"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 5.0,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"products": [
"CSAFPID-0001"
]
}
]
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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