Vulnerability record/PUBLISHED/Published Nov 12, 2026 03:34:37 UTC

CVE-2026-86343

An improper neutralization of CRLF sequences vulnerability in the SNMP API in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users with administrator privileges to read or write arbitrary files and conduct denial-of-service attacks.

Base score6.8/ 10

SeverityMediumCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityMedium

Attack vectorAdjacentAV

Attack complexityLowAC

Privileges requiredHighPR

User interactionNoneUI

ScopeUnchangedS

Confidentiality impactHighC

Integrity impactHighI

Availability impactHighA

CVSS vector stringCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authoritysynology

Last updatedNov 12, 2026 03:34:37 UTC

PublishedNov 12, 2026 03:34:37 UTC

ReservedSep 7, 2026 09:06:22 UTC

Credits

Jincheng Wang (@winmt) from Nanjing University of Posts and Telecommunications