Arcserve UDP Console 10.3 incorrectly specified destination in a communication channel

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k0.32

Summaryinfo

A vulnerability was found in Arcserve UDP Console 10.3. It has been classified as critical. The impacted element is an unknown function. This manipulation causes incorrectly specified destination in a communication channel. The identification of this vulnerability is CVE-2026-40118. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in Arcserve UDP Console 10.3. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a incorrectly specified destination in a communication channel vulnerability. The CWE definition for the vulnerability is CWE-941. The product creates a communication channel to initiate an outgoing request to an actor, but it does not correctly specify the intended destination for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

UDP Console provided by Arcserve contains an incorrectly specified destination in a communication channel vulnerability. When a user configures an activation server hostname of the affected product to a dummy URL, the product may unintentionally communicate with the dummy domain, causing information disclosure.

It is possible to read the advisory at support.arcserve.com. This vulnerability is known as CVE-2026-40118 since 04/09/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/16/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23192). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.3
CNA Vector (jpcert): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Incorrectly specified destination in a communication channel
CWE: CWE-941
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/09/2026 CVE reserved
04/16/2026 +7 days Advisory disclosed
04/16/2026 +0 days VulDB entry created
04/16/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: support.arcserve.com
Status: Confirmed

CVE: CVE-2026-40118 (🔒)
GCVE (CVE): GCVE-0-2026-40118
GCVE (VulDB): GCVE-100-357859
EUVD: 🔒

Entryinfo

Created: 04/16/2026 07:27
Updated: 04/16/2026 09:03
Changes: 04/16/2026 07:27 (72), 04/16/2026 09:03 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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