How severe is CVE-2017-9552?

CVE-2017-9552 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-9552 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-9552?

CVE-2017-9552 primarily affects Synology Photo Station. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-9552?

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-2017-9552 published?

CVE-2017-9552 was published on 2017-06-13 and last updated on 2026-06-17.

CVE-2017-9552

CVE-2017-9552 is a high-severity vulnerability in Synology Photo Station with a CVSS 3.x base score of 7.8. 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-287.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 2.1
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Synology Photo Station
Published: 2017-06-13
Last modified: 2026-06-17

Description

A design flaw in authentication in Synology Photo Station 6.0-2528 through 6.7.1-3419 allows local users to obtain credentials via cmdline. Synology Photo Station employs the synophoto_dsm_user program to authenticate username and password by "synophoto_dsm_user --auth USERNAME PASSWORD", and local users are able to obtain credentials by sniffing "/proc/*/cmdline".

Frequently asked questions

What is CVE-2017-9552?: A design flaw in authentication in Synology Photo Station 6.0-2528 through 6.7.1-3419 allows local users to obtain credentials via cmdline. Synology Photo Station employs the synophoto_dsm_user program to authenticate username and password by "synophoto_dsm_user --auth USERNAME PASSWORD", and local users are able to obtain credentials by sniffing "/proc/*/cmdline".
How severe is CVE-2017-9552?: CVE-2017-9552 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-9552 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-9552?: CVE-2017-9552 primarily affects Synology Photo Station. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-9552?: 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-2017-9552 published?: CVE-2017-9552 was published on 2017-06-13 and last updated on 2026-06-17.

References

Affected products (24)

cpe:2.3:a:synology:photo_station:6.0-2528:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.0-2636:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.0-2638:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.0-2639:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.0-2640:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.3-2944:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.3-2958:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.3-2960:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.3-2962:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.3-2963:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.3-2964:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.3-2965:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.4-3166:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.5.0-3218:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.5.1-3223:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.5.2-3225:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.5.3-3226:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.6.0-3339:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.6.1-3345:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.6.1-3346:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.6.2-3346:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.6.3-3347:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.7.0-3414:*:*:*:*:*:*:*
cpe:2.3:a:synology:photo_station:6.7.1-3419:*:*:*:*:*:*:*

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-2021-29092 — High (CVSS 8.8): Unrestricted upload of file with dangerous type vulnerability in file management component in Synology Photo Station…

All CVEs affecting Synology Photo Station →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →