How severe is CVE-2018-8926?

CVE-2018-8926 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-2018-8926 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-2018-8926?

CVE-2018-8926 affects Synology Photo Station. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8926?

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-2018-8926 published?

CVE-2018-8926 was published on 2018-06-08 and last updated on 2026-06-17.

CVE-2018-8926

CVE-2018-8926 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-625.

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-625
Affected product: Synology Photo Station
Published: 2018-06-08
Last modified: 2026-06-17

Description

Permissive regular expression vulnerability in synophoto_dsm_user in Synology Photo Station before 6.8.5-3471 and before 6.3-2975 allows remote authenticated users to conduct privilege escalation attacks via the fullname parameter.

Frequently asked questions

What is CVE-2018-8926?: Permissive regular expression vulnerability in synophoto_dsm_user in Synology Photo Station before 6.8.5-3471 and before 6.3-2975 allows remote authenticated users to conduct privilege escalation attacks via the fullname parameter.
How severe is CVE-2018-8926?: CVE-2018-8926 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-2018-8926 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-2018-8926?: CVE-2018-8926 affects Synology Photo Station. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8926?: 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-2018-8926 published?: CVE-2018-8926 was published on 2018-06-08 and last updated on 2026-06-17.

References

https://www.synology.com/zh-tw/support/security/Synology_SA_18_15

Affected products (1)

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

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