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CVE Record

CVE-2026-11841: CVE-2026-11841

An attacker may perform unauthenticated read and write operations on sensitive filesystem areas via the AppEngine Fileaccess over HTTP due to improper access restrictions. A critical filesystem directory was unintentionally exposed through the HTTP-based file access feature, allowing access without authentication. This includes device parameter files, enabling an attacker to read and modify application settings, including customer-defined passwords. Additionally, exposure of the custom application directory may allow execution of arbitrary Lua code within the sandboxed AppEngine environment.

CriticalCVSS 9.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

Affected SICK vision devices expose sensitive filesystem areas through an unauthenticated HTTP file-access feature. A remote attacker could read or alter settings and customer-defined passwords. Access to the custom application directory may also permit arbitrary Lua execution inside the device’s sandboxed AppEngine environment, potentially disrupting industrial operations.

Executive priority

Treat reachable affected devices as an immediate remediation priority because attackers may alter credentials and operational settings without authentication. First isolate exposure, then coordinate vendor-approved remediation and credential rotation. Devices confined to tightly controlled networks remain important but can follow reachable systems after access controls are independently verified.

Technical view

CWE-552 access restrictions improperly expose critical directories through AppEngine Fileaccess over HTTP. Exploitation requires no credentials or user interaction and has low complexity. The vendor-assigned CVSS 3.1 score is 9.4, reflecting high confidentiality and integrity impact, plus limited availability impact. Lua execution is described as sandboxed; broader device compromise is not established.

Likely exposure

InspectorP63x, P64x, and P65x are listed as affected in all versions. InspectorP61x, P62x, and ICR890-4 list version “0,” whose precise meaning is unclear. Risk is greatest where the HTTP file-access feature is reachable from untrusted, enterprise, or internet-connected networks.

Exploitation context

The supplied sources do not report active exploitation, and this CVE is not listed as KEV in the bundle. Nevertheless, network access, low complexity, and absent authentication make exploitation practical if the vulnerable HTTP interface is reachable. No exploit method should be required to prioritize defensive action.

Researcher notes

The evidence supports unauthorized filesystem read/write and sandboxed Lua execution, but does not establish sandbox escape, full operating-system takeover, or active exploitation. The “0” version entries require clarification from SICK. The bundle names no specific fixed release, so patch availability and exact upgrade paths should be confirmed through the canonical advisory.

Mitigation direction

  • Consult SICK advisory SCA-2026-0010 for product-specific updates or mitigations.
  • Restrict HTTP file-access reachability to authorized management systems and trusted networks.
  • Segment affected devices from internet-facing and general enterprise networks.
  • After containment, rotate customer-defined passwords that may have been exposed.
  • Back up and verify configurations before applying vendor-recommended remediation.

Validation and detection

  • Inventory the listed SICK models and record exact firmware versions.
  • Confirm whether AppEngine Fileaccess over HTTP is enabled and network-reachable.
  • Review firewall paths for access from internet, enterprise, wireless, and vendor networks.
  • Compare device parameters and custom application files against trusted baselines.
  • Review available logs for unexpected HTTP access or configuration changes.
  • Verify vendor guidance resolves exposure without disrupting required industrial workflows.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · low confidence lookup

CWE-552: Exact CWE lookup

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cve · low confidence lookup

CVE-2026-11841 mapping review

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Official CVE source material

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.

1CVSS vectors
3Timeline events
1ADP providers
7Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
9.4CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L3.95.5SICK AG

Vulnerability scoring details

Base CVSS 3.1 score

9.4Critical
CVSS 3.1 vector shape for CVE-2026-11841Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
SICK AGInspectorP61x0affected
SICK AGInspectorP62x0affected
SICK AGInspectorP65xall versionsaffected
SICK AGInspectorP63xall versionsaffected
SICK AGInspectorP64xall versionsaffected
SICK AGICR890-40affected
Weakness

CWE details

CWE-552

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-552 · source CWE mapping

Files or Directories Accessible to External Parties

Files or Directories Accessible to External Parties represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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