Security readout for executives and security teams
Plain-English summary
An authenticated AVEVA Enterprise SCADA operator could alter serialized data so the system executes code with DNA Apps security-group privileges. Successful exploitation could disrupt operations, change data, and expose limited information. Exploitation requires an authorized account with DNA Authority - Operator privilege and high attack complexity, reducing—but not removing—risk in sensitive operational environments.
Executive priority
Treat this as a high-priority OT remediation and access-control review, especially for operationally critical SCADA or pipeline environments. Prioritize exposed or broadly reachable systems and deployments with numerous operator accounts. The authentication and complexity requirements allow planned remediation rather than emergency shutdown, unless local evidence indicates credential compromise or suspicious activity.
Technical view
CVE-2025-7639 is CWE-502, deserialization of untrusted data. A network-accessible, low-privileged authenticated attacker with the specified operator role may tamper with serialized data, potentially causing code execution as DNA Apps. CVSS 3.1 is 7.1: AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H. The supplied version data is ambiguous, so exact affected and corrected releases require vendor confirmation.
Likely exposure
Exposure is most likely where the listed AVEVA SCADA, HMI, pipeline, simulation, or Measurement Advisor products are deployed and operator credentials can reach vulnerable services. Network attackability does not establish internet exposure. Because the bundle mixes numerous releases with a default status of unaffected, organizations should validate each installed build against AVEVA’s bulletin rather than infer status from this list alone.
Exploitation context
The bundle does not show known active exploitation, and CVE-2025-7639 is not identified as a CISA KEV entry. Exploitation requires authentication with DNA Authority - Operator privilege and high complexity, but needs no user interaction. Compromised operator credentials or malicious insiders are the clearest risk contexts supported by the available evidence.
Researcher notes
The central uncertainty is release applicability: the supplied bundle lists several product versions while assigning a default status of unaffected, without clearly separating vulnerable and fixed builds. Researchers should rely on AVEVA’s bulletin and CISA’s advisory for authoritative product-status boundaries. No exploit availability, exploitation campaign, or specific patch level can be established from the supplied facts alone.
Mitigation direction
- Review AVEVA Security Bulletin AVEVA-2026-005 for product-specific corrected releases or mitigations.
- Apply AVEVA-supported updates after testing them against operational availability and safety requirements.
- Restrict operator accounts and remove unnecessary DNA Authority - Operator privileges.
- Limit network access to affected services using approved administrative and operational paths.
- Monitor privileged accounts and serialized-data workflows for unauthorized changes.
Validation and detection
- Inventory installed AVEVA products, exact versions, hotfixes, and deployment roles.
- Compare every installed build with AVEVA Security Bulletin AVEVA-2026-005.
- Identify accounts holding DNA Authority - Operator privilege and confirm business need.
- Verify network controls restrict access to SCADA services from untrusted segments.
- Review relevant authentication, configuration-change, and application logs for suspicious privileged activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-7639 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H1.65.5icscertCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N——icscertVulnerability scoring details
Base CVSS 4.0 score
6.1MediumVector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2026-005.pdfCVE reference, icscert
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-225-01CVE reference, icscert
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-225-01.jsonCVE reference, icscert
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.