How severe is CVE-2024-6156?

CVE-2024-6156 has a CVSS 3.x base score of 3.8, 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-2024-6156 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-6156?

CVE-2024-6156 affects Canonical Lxd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-6156?

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

Does CVE-2024-6156 have an EU (EUVD) identifier?

Yes. CVE-2024-6156 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3419.

When was CVE-2024-6156 published?

CVE-2024-6156 was published on 2024-12-06 and last updated on 2026-06-17.

CVE-2024-6156

CVE-2024-6156 is a low-severity vulnerability in Canonical Lxd with a CVSS 3.x base score of 3.8. 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-295.

Key facts

Severity: Low (CVSS 3.x base score 3.8)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-3419
Weakness: CWE-295
Affected product: Canonical Lxd
Published: 2024-12-06
Last modified: 2026-06-17

Description

Mark Laing discovered that LXD's PKI mode, until version 5.21.2, could be bypassed if the client's certificate was present in the trust store.

Frequently asked questions

What is CVE-2024-6156?: Mark Laing discovered that LXD's PKI mode, until version 5.21.2, could be bypassed if the client's certificate was present in the trust store.
How severe is CVE-2024-6156?: CVE-2024-6156 has a CVSS 3.x base score of 3.8, 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-2024-6156 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-6156?: CVE-2024-6156 affects Canonical Lxd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-6156?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-6156 have an EU (EUVD) identifier?: Yes. CVE-2024-6156 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3419.
When was CVE-2024-6156 published?: CVE-2024-6156 was published on 2024-12-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*

More vulnerabilities in Canonical Lxd

CVE-2026-34179 — Critical (CVSS 9.1): In Canonical LXD versions 4.12 through 6.7, the doCertificateUpdate function in lxd/certificates.go does not validate…
CVE-2026-34178 — Critical (CVSS 9.1): In Canonical LXD before 6.8, the backup import path validates project restrictions against backup/index.yaml in the…
CVE-2026-34177 — Critical (CVSS 9.1): Canonical LXD versions 4.12 through 6.7 contain an incomplete denylist in isVMLowLevelOptionForbidden…
CVE-2025-54286 — High (CVSS 8.8): Cross-Site Request Forgery (CSRF) in LXD-UI in Canonical LXD versions >= 5.0 on Linux allows an attacker to create and…
CVE-2026-12411 — High (CVSS 8.4): Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an untrusted guest to mount,…
CVE-2025-54289 — High (CVSS 8.1): Privilege Escalation in operations API in Canonical LXD <6.5 on multiple platforms allows attacker with read…

All CVEs affecting Canonical Lxd →

Other CWE-295 (Improper Certificate Validation) vulnerabilities

CVE-2026-4370 — Critical (CVSS 10.0): A vulnerability was identified in Juju from version 3.2.0 until 3.6.19 and from version 4.0 until 4.0.4, where the…
CVE-2026-30836 — Critical (CVSS 10.0): Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6…
CVE-2025-68121 — Critical (CVSS 10.0): During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between…
CVE-2022-20703 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2021-1471 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2026-20184 — Critical (CVSS 9.8): A vulnerability in the integration of single sign-on (SSO) with Control Hub in Cisco Webex Services could have allowed…

Browse all CWE-295 (Improper Certificate Validation) vulnerabilities →