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October 2, 2026

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CVE-2026-40530NVD

Vulnerability Summary

An improper neutralization of CRLF sequences ('CRLF injection') vulnerability in User API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks after the system is rebooted.
Severity Level
HIGH(8.0)
Published Date
Sep 18, 2026
Last Modified
Sep 18, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.49%Probability
Root Weakness (CWE)
CWE-93: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 8.0 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Synology DiskStation Manager (DSM) >= 7.3 and < 7.3.2-86009-2
  • Synology DiskStation Manager (DSM) >= 7.2.2 and < 7.2.2-72806-7
  • Synology DiskStation Manager (DSM) >= 7.2.1 and < 7.2.1-69057-10
  • Synology DiskStation Manager (DSM) < 7.2.1
Patched Versions
  • Synology DiskStation Manager (DSM) 7.3.2-86009-2
  • Synology DiskStation Manager (DSM) 7.2.2-72806-7
  • Synology DiskStation Manager (DSM) 7.2.1-69057-10
  • Synology DiskStation Manager (DSM) 7.2.1
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References