How severe is CVE-2025-52950?

CVE-2025-52950 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2025-52950 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52950?

CVE-2025-52950 affects Juniper Security Director. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-52950?

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

Does CVE-2025-52950 have an EU (EUVD) identifier?

Yes. CVE-2025-52950 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21158.

When was CVE-2025-52950 published?

CVE-2025-52950 was published on 2025-07-11 and last updated on 2026-06-17.

CVE-2025-52950

CVE-2025-52950 is a critical-severity vulnerability in Juniper Security Director with a CVSS 3.x base score of 9.6. 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-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
CVSS v4: 6.4
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21158
Weakness: CWE-862
Affected product: Juniper Security Director
Published: 2025-07-11
Last modified: 2026-06-17

Description

A Missing Authorization vulnerability in Juniper Networks Security Director allows an unauthenticated network-based attacker to read or tamper with multiple sensitive resources via the web interface. Numerous endpoints on the Juniper Security Director appliance do not validate authorization and will deliver information to the caller that is outside their authorization level. An attacker can access data that is outside the user's authorization level. The information obtained can be used to gain access to additional information or perpetrate other attacks, impacting downstream managed devices. This issue affects Security Director version 24.4.1.

Frequently asked questions

What is CVE-2025-52950?: A Missing Authorization vulnerability in Juniper Networks Security Director allows an unauthenticated network-based attacker to read or tamper with multiple sensitive resources via the web interface. Numerous endpoints on the Juniper Security Director appliance do not validate authorization and will deliver information to the caller that is outside their authorization level. An attacker can access data that is outside the user's authorization level. The information obtained can be used to gain access to additional information or perpetrate other attacks, impacting downstream managed devices. This issue affects Security Director version 24.4.1.
How severe is CVE-2025-52950?: CVE-2025-52950 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2025-52950 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52950?: CVE-2025-52950 affects Juniper Security Director. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-52950?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-52950 have an EU (EUVD) identifier?: Yes. CVE-2025-52950 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21158.
When was CVE-2025-52950 published?: CVE-2025-52950 was published on 2025-07-11 and last updated on 2026-06-17.

References

https://supportportal.juniper.net/JSA100054

Affected products (1)

cpe:2.3:a:juniper:security_director:24.4.1:*:*:*:*:*:*:*

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