# CVE-2026-19048: CVE-2026-19048

Status: published. Published: 2026-11-12. Updated: 2026-11-12.

An improper link resolution before file access vulnerability in the thumb in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to write arbitrary files and conduct denial-of-service attacks.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Synology / DiskStation Manager (DSM): ≥ 7.4.1; < 7.4.1-90080-1 (affected, semver); ≥ 7.3.2; < 7.3.2-86009-5 (affected, semver); ≥ 0; < 7.3.2 (unknown, semver). Source: CNA: synology

## Severity and prioritization

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H; source: CNA: synology

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-59

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.synology.com/en-global/security/advisory/Synology_SA_26_18 (CNA: synology)

## Provenance

- CNA: synology: https://www.cve.org/CVERecord?id=CVE-2026-19048; retrieved 2026-11-12; source updated 2026-11-12

Revision: 5e490384c18ef8361ce7b21f9f65095655d832b7c2627f8532439d1ab1f91f91

Canonical: https://y2.dev/cve/CVE-2026-19048

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