How severe is CVE-2015-7764?

CVE-2015-7764 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2015-7764 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-7764?

CVE-2015-7764 affects Netflix Lemur. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-7764?

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-2015-7764 published?

CVE-2015-7764 was published on 2017-08-09 and last updated on 2026-06-17.

CVE-2015-7764

CVE-2015-7764 is a high-severity vulnerability in Netflix Lemur with a CVSS 3.x base score of 7.5. 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-331.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-331
Affected product: Netflix Lemur
Published: 2017-08-09
Last modified: 2026-06-17

Description

Lemur 0.1.4 does not use sufficient entropy in its IV when encrypting AES in CBC mode.

Frequently asked questions

What is CVE-2015-7764?: Lemur 0.1.4 does not use sufficient entropy in its IV when encrypting AES in CBC mode.
How severe is CVE-2015-7764?: CVE-2015-7764 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2015-7764 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-7764?: CVE-2015-7764 affects Netflix Lemur. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-7764?: 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-2015-7764 published?: CVE-2015-7764 was published on 2017-08-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:netflix:lemur:0.1.4:*:*:*:*:*:*:*

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