CVE-2026-26222

CRITICAL

Altec DocLink (now maintained by Beyond Limits Inc.) version 4.0.336.0 exposes insecure .NET Remoting endpoints over TCP and HTTP/SOAP via Altec.RDCHostService.exe using the ObjectURI "doclinkServe...

Affects 1 product across 1 vendor.

CVSS 3.19.8
CVSS v410.0
EPSS1.6%
Percentile75th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-502: Deserialization of Untrusted Data

Software deserializes untrusted data without validation, allowing crafted objects to execute arbitrary code.

CWE-918: Server-Side Request Forgery (SSRF)

Attacker causes the server to make HTTP requests to attacker-chosen destinations, potentially reaching internal services.

Related Attack Patterns (CAPEC)
CAPEC-664 Server Side Request Forgery
via CWE-918
CAPEC-586 Object Injection
via CWE-502

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

Altec DocLink version 4.0.336.0, now maintained by Beyond Limits Inc., exposes insecure .NET Remoting endpoints over TCP and HTTP/SOAP, which can be exploited by remote attackers to read arbitrary files from the system.

BSID: BS-2026-GLOBAL-275007-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2026-26222?
Altec DocLink version 4.0.336.0, now maintained by Beyond Limits Inc., exposes insecure .NET Remoting endpoints over TCP and HTTP/SOAP, which can be exploited by remote attackers to read arbitrary files from the system.
What is the CVSS score for CVE-2026-26222?
CVE-2026-26222 has CVSS 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 1.6%.
Is CVE-2026-26222 actively exploited?
No confirmed active exploitation of CVE-2026-26222 as of 2026-09-25.
How do I remediate CVE-2026-26222?
Priority: IMMEDIATE.
What systems are affected by CVE-2026-26222?
CVE-2026-26222 affects Beyond Altec Doclink.
Vulnerability Details
CVE IDCVE-2026-26222
BSIDBS-2026-GLOBAL-275007-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2026-02-24
Last Modified2026-06-17
ICS Relevance15%
Weakness (CWE)
SourceNVD
Official Description

Altec DocLink (now maintained by Beyond Limits Inc.) version 4.0.336.0 exposes insecure .NET Remoting endpoints over TCP and HTTP/SOAP via Altec.RDCHostService.exe using the ObjectURI "doclinkServer.soap". The service does not require authentication and is vulnerable to unsafe object unmarshalling, allowing remote attackers to read arbitrary files from the underlying system by specifying local file paths. Additionally, attackers can coerce SMB authentication via UNC paths and write arbitrary files to server locations. Because writable paths may be web-accessible under IIS, this can result in unauthenticated remote code execution or denial of service through file overwrite.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

The vulnerability lies in the Altec.RDCHostService.exe service, which uses the ObjectURI 'doclinkServer.soap'. This service does not require authentication and is susceptible to unsafe object unmarshalling, allowing attackers to perform unauthorized file operations.

Exploitation Likelihood: CRITICAL

Affected Products
VendorProductAffected Versions
Beyond Altec Doclink 4.0.336.0
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 233 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
SHA-512 Audit Hashde76bb1eddce833cc47df66306788e55d4bc1f0bf8109f711c56a03dc4391834bdf1d4881050c66200370fdbdb4e33805095cf6d7059fdbe0804a5bc5b06192a
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