CVE-2026-40530 json
An improper neutralization of CRLF sequences ('CRLF injection') vulnerability in User API in Synology DiskStation Manager (DSM) before 7.2.…
published last mo. modified last mo. also EUVD-2026-82785
- cvss
- 8.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
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.
Patch / fix
- Synology DiskStation Manager (DSM) 7.2.1-69057-10, 7.2.2-72806-7, 7.3.2-86009-2
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- last mo.
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Synology DiskStation Manager (DSM)
Classification
- Weakness
-
- CWE-93 Improper Neutralization of CRLF Sequences
References
-
synology.com
/en-global/security/advisory/Synology_SA_26_06
vendor-advisory
Sources
- CVE List CVE-2026-40530
- NVD CVE-2026-40530
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