EUVD-2026-82787
GHSA-hj3j-c7hh-gwq9
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Network-reachable File Operation needs a low-privileged authenticated account (PR:L), no user interaction, and yields only a limited availability impact (A:L) with no confidentiality/integrity effect.
Primary rating from Vendor (synology).
CVSS VectorVendor: synology
Lifecycle Timeline
2DescriptionCVE.org
An integer overflow or wraparound vulnerability in File Operation 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 conduct limited denial-of-service attacks.
AnalysisAI
Integer overflow in the File Operation component of Synology DiskStation Manager (DSM) allows remote authenticated users to trigger a limited denial-of-service condition against affected NAS appliances. Only systems running DSM versions prior to 7.2.1-69057-10, 7.2.2-72806-7, or 7.3.2-86009-2 are affected; the vulnerability requires a valid DSM account with rights to invoke File Operation, matching the CVSS vector's PR:L (authenticated) rating. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a valid authenticated DSM user account (PR:L) with permission to invoke the File Operation functionality; the attacker supplies a value that triggers an integer overflow/wraparound in that operation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a low-priority issue despite the network attack vector. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: upgrade to DSM 7.2.1-69057-10 or later on the 7.2.1 branch, DSM 7.2.2-72806-7 or later on the 7.2.2 branch, or DSM 7.3.2-86009-2 or later on the 7.3.2 branch, as documented in Synology advisory SA_26_06 (https://www.synology.com/en-global/security/advisory/Synology_SA_26_06); patching can be applied through DSM Update or downloaded manually from Synology's download center. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Diskstation Manager Dsm
View allSynology DiskStation Manager (DSM) login logic uses insufficiently random values, letting remote unauthenticated attacke
Improper output encoding in the SCGI service of Synology DiskStation Manager (DSM) lets unauthenticated remote attackers
Authenticated remote attackers holding low-privileged credentials can exploit an incorrect permission assignment in the
An external control of file name or path flaw in the Synology DiskStation Manager (DSM) Upload API allows remote authent
CRLF injection in the Synology DiskStation Manager (DSM) User API lets a remote, low-privileged authenticated user (PR:L
Man-in-the-middle attackers positioned on the network path between a Synology DiskStation and its configured mail server
Unauthenticated path traversal in the Synology DiskStation Manager (DSM) Desktop API allows remote attackers to write a
Information disclosure in Synology DiskStation Manager (DSM) allows remote authenticated users to obtain sensitive infor
An authenticated SQL injection in the Sharing API of Synology DiskStation Manager (DSM) allows remote users with valid -
Cross-site scripting in the Video API of Synology DiskStation Manager (DSM) allows a remote authenticated user to read o
Unauthenticated remote attackers can query the Desktop API in Synology DiskStation Manager (DSM) to retrieve non-sensiti
Improper encoding and escaping of output in the Auth API of Synology DiskStation Manager (DSM) lets remote, unauthentica
Same weakness CWE-190 – Integer Overflow or Wraparound
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today