How severe is CVE-2021-29092?

CVE-2021-29092 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-29092 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29092?

CVE-2021-29092 affects Synology Photo Station. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29092?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-29092 published?

CVE-2021-29092 was published on 2021-06-01 and last updated on 2026-06-17.

CVE-2021-29092

CVE-2021-29092 is a high-severity vulnerability in Synology Photo Station with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Synology Photo Station
Published: 2021-06-01
Last modified: 2026-06-17

Description

Unrestricted upload of file with dangerous type vulnerability in file management component in Synology Photo Station before 6.8.14-3500 allows remote authenticated users to execute arbitrary code via unspecified vectors.

Frequently asked questions

What is CVE-2021-29092?: Unrestricted upload of file with dangerous type vulnerability in file management component in Synology Photo Station before 6.8.14-3500 allows remote authenticated users to execute arbitrary code via unspecified vectors.
How severe is CVE-2021-29092?: CVE-2021-29092 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-29092 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29092?: CVE-2021-29092 affects Synology Photo Station. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29092?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-29092 published?: CVE-2021-29092 was published on 2021-06-01 and last updated on 2026-06-17.

References

https://www.synology.com/security/advisory/Synology_SA_20_20

Affected products (1)

cpe:2.3:a:synology:photo_station:*:*:*:*:*:*:*:*

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