9.0 CriticalCWE-79
CVE-2026-40541
Synology Chat Server vulnerability
SynologySynology Chat Server
Status
- Not in CISA KEV
- Fixed in version 2.4.5-22148
Exploit probabilityEPSSchecked 25 Oct
0.5%probability of exploitation in the next 30 days
Higher than 42% of scored CVEs
SeverityCVSS
9.0Critical
Description NVD
An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in extract domain in Synology Chat Server before 2.4.5-22148 allows remote authenticated users, via a UI interaction, to read or write arbitrary files and conduct denial-of-service attacks in DSM.
Coverage 1 article · 1 outlet
- Critical Patches Fix Synology Chat Server VulnerabilitiesSecurityOnline · first in our coverage