How severe is CVE-2023-5536?

CVE-2023-5536 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-5536 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5536?

CVE-2023-5536 affects Canonical Ubuntu Linux. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5536?

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

When was CVE-2023-5536 published?

CVE-2023-5536 was published on 2023-12-12 and last updated on 2026-06-17.

CVE-2023-5536

CVE-2023-5536 is a medium-severity vulnerability in Canonical Ubuntu Linux with a CVSS 3.x base score of 5.0. 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-276.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Canonical Ubuntu Linux
Published: 2023-12-12
Last modified: 2026-06-17

Description

A feature in LXD (LP#1829071), affects the default configuration of Ubuntu Server which allows privileged users in the lxd group to escalate their privilege to root without requiring a sudo password.

Frequently asked questions

What is CVE-2023-5536?: A feature in LXD (LP#1829071), affects the default configuration of Ubuntu Server which allows privileged users in the lxd group to escalate their privilege to root without requiring a sudo password.
How severe is CVE-2023-5536?: CVE-2023-5536 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-5536 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5536?: CVE-2023-5536 affects Canonical Ubuntu Linux. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5536?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-5536 published?: CVE-2023-5536 was published on 2023-12-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*

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