How severe is CVE-2015-9543?

CVE-2015-9543 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2015-9543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-9543?

CVE-2015-9543 affects Openstack Nova. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-9543?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-9543 published?

CVE-2015-9543 was published on 2020-02-19 and last updated on 2026-06-17.

CVE-2015-9543

CVE-2015-9543 is a low-severity vulnerability in Openstack Nova with a CVSS 3.x base score of 3.3. 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-200.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 2.1
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Openstack Nova
Published: 2020-02-19
Last modified: 2026-06-17

Description

An issue was discovered in OpenStack Nova before 18.2.4, 19.x before 19.1.0, and 20.x before 20.1.0. It can leak consoleauth tokens into log files. An attacker with read access to the service's logs may obtain tokens used for console access. All Nova setups using novncproxy are affected. This is related to NovaProxyRequestHandlerBase.new_websocket_client in console/websocketproxy.py.

Frequently asked questions

What is CVE-2015-9543?: An issue was discovered in OpenStack Nova before 18.2.4, 19.x before 19.1.0, and 20.x before 20.1.0. It can leak consoleauth tokens into log files. An attacker with read access to the service's logs may obtain tokens used for console access. All Nova setups using novncproxy are affected. This is related to NovaProxyRequestHandlerBase.new_websocket_client in console/websocketproxy.py.
How severe is CVE-2015-9543?: CVE-2015-9543 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2015-9543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-9543?: CVE-2015-9543 affects Openstack Nova. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-9543?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-9543 published?: CVE-2015-9543 was published on 2020-02-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*

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