Medium severity · published Apr 16, 2026
CVE-2026-40118
UDP Console provided by Arcserve contains an incorrectly specified destination in a communication channel vulnerability
6.3
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UC
UDP Console · Arcserve
10.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40118
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40118
jvn.jp
https://jvn.jp/en/jp/JVN88396700/
support.arcserve.com
https://support.arcserve.com/s/article/P00003790?language=en_US&r=94&ui-knowledge-components-aura-actions.KnowledgeArticleVersionCreateDraftFromOnlineAction.createDraftFromOnlineArticle=1