How severe is CVE-2015-9259?

CVE-2015-9259 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-9259 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-9259?

CVE-2015-9259 affects Docker Notary. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-9259?

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.

When was CVE-2015-9259 published?

CVE-2015-9259 was published on 2018-03-31 and last updated on 2026-06-17.

CVE-2015-9259

CVE-2015-9259 is a critical-severity vulnerability in Docker Notary with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Docker Notary
Published: 2018-03-31
Last modified: 2026-06-17

Description

In Docker Notary before 0.1, the checkRoot function in gotuf/client/client.go does not check expiry of root.json files, despite a comment stating that it does. Even if a user creates a new root.json file after a key compromise, an attacker can produce update files referring to an old root.json file.

Frequently asked questions

What is CVE-2015-9259?: In Docker Notary before 0.1, the checkRoot function in gotuf/client/client.go does not check expiry of root.json files, despite a comment stating that it does. Even if a user creates a new root.json file after a key compromise, an attacker can produce update files referring to an old root.json file.
How severe is CVE-2015-9259?: CVE-2015-9259 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-9259 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-9259?: CVE-2015-9259 affects Docker Notary. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-9259?: 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.
When was CVE-2015-9259 published?: CVE-2015-9259 was published on 2018-03-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:docker:notary:*:*:*:*:*:*:*:*

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