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% (76th 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% (76th 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% (76th 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:*:*:*:*:*:*:*:*

More vulnerabilities in Synology Photo Station

CVE-2021-29089 — Critical (CVSS 9.8): Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in thumbnail…
CVE-2017-11161 — Critical (CVSS 9.8): Multiple SQL injection vulnerabilities in Synology Photo Station before 6.7.4-3433 and 6.3-2968 allow remote attackers…
CVE-2017-11153 — Critical (CVSS 9.8): Deserialization vulnerability in synophoto_csPhotoMisc.php in Synology Photo Station before 6.7.3-3432 and 6.3-2967…
CVE-2017-11151 — Critical (CVSS 9.8): A vulnerability in synotheme_upload.php in Synology Photo Station before 6.7.3-3432 and 6.3-2967 allows remote…
CVE-2016-10329 — Critical (CVSS 9.8): Command injection vulnerability in login.php in Synology Photo Station before 6.5.3-3226 allows remote attackers to…
CVE-2018-8926 — High (CVSS 8.8): Permissive regular expression vulnerability in synophoto_dsm_user in Synology Photo Station before 6.8.5-3471 and…

All CVEs affecting Synology Photo Station →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-75949 — Critical (CVSS 10.0): Joomla Extension - cmsjunkie.com - Arbitrary file upload / deletion (path traversal) in J-BusinessDirectory < 6.2.3 -…
CVE-2026-74803 — Critical (CVSS 10.0): Joomla Extension - yootheme.com - Unauthenticated arbitrary file upload in Zoo < 4.1.64 - The image element accepts…
CVE-2026-66665 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in Type Hub <= 2.0.6 versions.
CVE-2026-61900 — Critical (CVSS 10.0): Joomla Extension - dj-extensions.com - Unauthenticated arbitrary file upload in DJ-jDownloads < 4.1.6 - The Joomla…
CVE-2026-61424 — Critical (CVSS 10.0): Joomla Extension - dj-extensions.com - Unauthenticated arbitrary file upload in DJ-Classifieds < 3.11.2 - The Joomla…
CVE-2026-57719 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in CodeRevolution Aimogen Pro aimogen-pro allows Using…

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →