CVE-2026-40434 | Anviz CrossChex Standard Communication Channel verification of source (icsa-26-106-03)

VDB-358016 · CVE-2026-40434 · ICSA-26-106-03 ANVIZ CROSSCHEX STANDARD COMMUNICATION CHANNEL VERIFICATION OF SOURCE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.1 $0-$5k 2.91+ Summaryinfo A vulnerability categorized as critical has been discovered in Anviz CrossChex Standard. Affected is an unknown function of the component Communication Channel Handler. Such manipulation leads to verification of source. This vulnerability is documented as CVE-2026-40434. The attack requires being on the local network. There is not any exploit available. Detailsinfo A vulnerability was found in Anviz CrossChex Standard (affected version unknown) and classified as critical. Affected by this issue is an unknown functionality of the component Communication Channel Handler. The manipulation with an unknown input leads to a verification of source vulnerability. Using CWE to declare the problem leads to CWE-940. The product establishes a communication channel to handle an incoming request that has been initiated by an actor, but it does not properly verify that the request is coming from the expected origin. Impacted is confidentiality, integrity, and availability. The advisory is shared for download at cisa.gov. This vulnerability is handled as CVE-2026-40434. The exploitation is known to be easy. The attack can only be done within the local network. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/17/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor Anviz Name CrossChex Standard CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.1 VulDB Base Score: 6.3 VulDB Temp Score: 6.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Verification of source CWE: CWE-940 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Partially Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/17/2026 Advisory disclosed 04/17/2026 +0 days VulDB entry created 04/17/2026 +0 days VulDB entry last update Sourcesinfo Advisory: icsa-26-106-03 Status: Not defined CVE: CVE-2026-40434 (🔒) GCVE (CVE): GCVE-0-2026-40434 GCVE (VulDB): GCVE-100-358016 Entryinfo Created: 04/17/2026 06:52 Changes: 04/17/2026 06:52 (49) Complete: 🔍 Cache ID: 99:5F8:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸