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Full vulnerability report · 2026
CVE-2026-76954High confidence

Synology DiskStation Manager (DSM): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Synology · DiskStation Manager (DSM)

9.8CriticalCVSS 3.1
Recommended action
Within 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Fix not verified
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.63% for the current model date.

Compensating controls

  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Synology DiskStation Manager (DSM) and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Recommended actionWithin 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Fix not verified
01

What, why and how

An improper neutralization of special elements used in an SQL command vulnerability in the Auth API in Synology DiskStation Manager (DSM) before 7.2.1-69057-13, 7.2.2-72806-10, 7.3.2-86009-5, and 7.4.1-90080-1 allows remote attackers to read or write arbitrary files and conduct denial-of-service attacks.

What

An improper neutralization of special elements used in an SQL command vulnerability in the Auth API in Synology DiskStation Manager (DSM) before 7.2.1-69057-13, 7.2.2-72806-10, 7.3.2-86009-5, and 7.4.1-90080-1 allows remote attackers to read or write arbitrary files and conduct denial-of-service attacks.

Why

Attacker-controlled data is not kept separate from SQL query syntax, allowing the intended database operation to be changed.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

An improper neutralization of special elements used in an SQL command vulnerability in the Auth API in Synology DiskStation Manager (DSM) before 7.2.1-69057-13, 7.2.2-72806-10, 7.3.2-86009-5, and 7.4.1-90080-1 allows remote attackers to read or write arbitrary files and conduct denial-of-service attacks.

Why

Attacker-controlled data is not kept separate from SQL query syntax, allowing the intended database operation to be changed.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-89 ↗

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'). The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-89
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-4430Synology DiskStation Manager: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Synology DiskStation Manager ausnutzen, um Dateien zu manipulieren, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um einen SQL-Injection Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen und um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1493Avis du CERT-FR

d?id=CVE-2026-18596 Référence CVE CVE-2026-18633 https://www.cve.org/CVERecord?id=CVE-2026-18633 Référence CVE CVE-2026-18792 https://www.cve.org/CVERecord?id=CVE-2026-18792 Référence CVE CVE-2026-19048 https://www.cve.org/CVERecord?id=CVE-2026-19048 Référence CVE CVE-2026-19414 https://www.cve.org/CVERecord?id=CVE-2026-19414 Référence CVE CVE-2026-19833 https://www.cve.org/CVERecord?id=CVE-2026-19833 Référence CVE CVE-2026-74850 https://www.cve.org/CVERecord?id=CVE-2026-74850 Référence CVE CVE-2026-74857 https://www.cve.org/CVERecord?id=CVE-2026-74857 Référence CVE CVE-2026-75785 https://www.cve.org/CVERecord?id=CVE-2026-75785 Référence CVE CVE-2026-76954 https://www.cve.org/CVERecord?id=CVE-2026-76954 Référence CVE CVE-2026-77738 https://www.cve.org/CVERecord?id=CVE-2026-77738 Référence CVE CVE-2026-81557 https://www.cve.org/CVERecord?id=CVE-2026-81557 Référence CVE CVE-2026-81558 https://www.cve.org/CVERecord?id=CVE-2026-81558 Référence CVE CVE-2026-81559 https://www.cve.org/CVERecord?id=CVE-2026-81559 Référence CVE CVE-2026-81584 https://www.cve.org/CVERecord?id=CVE-2026-81584 Référence CVE CVE-2026-85098 https://www.cve.org/CVERecord?id=CVE-2026-85098 Référence CVE CVE-2026-85101 https://www.cve.org/CVERecord?id=CVE-2026-85101 Référence CVE CVE-2026-86343 https://www.cve.org/CVERecord?id=

Official advisory ↗
NBSZ-NKI · Hungarian · cve-2026-76954CVE-2026-76954

An improper neutralization of special elements used in an SQL command vulnerability in the Auth API in Synology DiskStation Manager (DSM) before 7.2.1-69057-13, 7.2.2-72806-10, 7.3.2-86009-5, and 7.4.1-90080-1 allows remote attackers to read or write arbitrary files and conduct denial-of-service attacks.

Official advisory ↗
CSIRT Italia · Italian · risolte-vulnerabilita-in-synology-diskstation-manager-dsm-1Risolte vulnerabilità in Synology DiskStation Manager (DSM)

Rilevate diverse vulnerabilità di sicurezza, di cui una con gravità “critica” e 9 con gravità “alta”, in Synology DiskStation Manager (DSM). Tali vulnerabilità, qualora sfruttate, potrebbero consentire ad un utente malintenzionato di scrivere e/o leggere file arbitrari sul filesystem e compromettere la disponibilità dei sistemi interessati.

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-7069Synology 제품 보안 업데이트 권고

Synology DiskStation Manager(DSM)에서 발생하는 SQL Injection 취약점(CVE-2026-76954) [1][3]

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
DiskStation Manager (DSM): 7.4.1 < 7.4.1-90080-1, 7.3.2 < 7.3.2-86009-5, 7.2.2 < 7.2.2-72806-10, 7.2.1 < 7.2.1-69057-13, < 7.2.1
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 12 Nov 2026 · Last source change 12 Nov 2026, 03:41 UTC · CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-11-12
European sourceNo official EUVD mapping
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD awaiting enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed: removed patch: synology.com/Synology_SA_26_19; removed remediation: synology.com/Synology_SA_26_19.
    Before
    patch: synology.com/Synology_SA_26_19 · remediation: synology.com/Synology_SA_26_19
    After
    no authoritative guidance recorded
    CNA ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the linked Synology advisory for the product-specific affected versions. · Fixed: DSM 7.4: Upgrade to 7.4.1-90080-1 or above.; DSM 7.3: Upgrade to 7.3.2-86009-5 or above.; DSM 7.2.2: Upgrade to 7.2.2-72806-10 or above.; DSM 7.2.1: Upgrade to 7.2.1-69057-13 or above.
    After
    DiskStation Manager (DSM): 7.4.1 < 7.4.1-90080-1, 7.3.2 < 7.3.2-86009-5, 7.2.2 < 7.2.2-72806-10, 7.2.1 < 7.2.1-69057-13, < 7.2.1 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  3. Remediation statusRemediation status changed from Patch available to Awaiting fix.
    Before
    Patch available
    After
    Awaiting fix
    CNA ↗
  4. CVSS scoreCVSS version changed from not recorded to 3.1; the displayed base score remains 9.8.
    Before
    9.8
    After
    9.8 (CVSS 3.1 · CNA · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
    CNA ↗
  5. Catalogue recordCVE added to the BlackTree catalogue.
    Authoritative vendor security advisory ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-76954 · cve.blacktree.nl