Analyst readout for executives and security teams
Plain-English summary
CVE-2011-4524 is a remote code execution risk in Advantech/BroadWin WebAccess versions before 7.0. A malformed long string in unspecified parameters can overflow memory and may let an attacker run code. The sources do not provide CVSS, detailed affected CPEs, or confirmed active exploitation.
Executive priority
Treat this as a high-priority legacy ICS exposure issue where WebAccess is present. The business urgency comes from remote code execution potential, not from confirmed active exploitation in the supplied evidence.
Technical view
The CVE describes a buffer overflow reachable remotely through long string values in unspecified parameters in WebAccess before 7.0. The vulnerable parameter, request path, authentication requirements, and reliable impact details are not present in the supplied sources. Treat exposed legacy WebAccess instances as potentially high-risk until vendor status is confirmed.
Likely exposure
Likely exposure is limited to organizations still running Advantech/BroadWin WebAccess earlier than 7.0, especially internet-reachable or poorly segmented industrial-control deployments. The supplied affected-product metadata is incomplete, so asset validation is required.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation. It does state remote attackers may execute arbitrary code, but the parameter details are unspecified. Do not assume public exploit maturity from these sources alone.
Researcher notes
Key gaps are CVSS, CPEs, vulnerable parameters, authentication context, and current vendor remediation language. The version boundary is “before 7.0,” but the supplied bundle does not include detailed patch instructions beyond referenced advisories.
Mitigation direction
- Inventory WebAccess deployments and record exact product versions.
- Check Advantech vendor guidance for the supported upgrade or mitigation path.
- Prioritize migration away from WebAccess versions earlier than 7.0.
- Restrict WebAccess access to trusted administrative networks only.
- Place affected ICS assets behind segmentation and monitored remote-access controls.
Validation and detection
- Confirm whether any WebAccess instance reports a version earlier than 7.0.
- Review external attack surface for exposed WebAccess interfaces.
- Check firewall and VPN policy limiting access to trusted operators.
- Look for vendor advisory references matching ICSA-12-047-01.
- Document unknowns: affected parameters, authentication requirements, and compensating controls.
Public sources used
Based on public source material and reviewed before publication.
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.
Execution 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-2011-4524 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-047-01.pdfCVE reference · x_refsource_MISC
- 52051CVE reference · vdb-entry, x_refsource_BID
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.