How severe is CVE-2019-11480?

CVE-2019-11480 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-11480 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11480?

CVE-2019-11480 affects Canonical C-kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-11480?

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-2019-11480 published?

CVE-2019-11480 was published on 2020-04-14 and last updated on 2026-06-17.

CVE-2019-11480

CVE-2019-11480 is a high-severity vulnerability in Canonical C-kernel with a CVSS 3.x base score of 8.4. 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-345.

Key facts

Severity: High (CVSS 3.x base score 8.4)
CVSS v2: 6.8
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Canonical C-kernel
Published: 2020-04-14
Last modified: 2026-06-17

Description

The pc-kernel snap build process hardcoded the --allow-insecure-repositories and --allow-unauthenticated apt options when creating the build chroot environment. This could allow an attacker who is able to perform a MITM attack between the build environment and the Ubuntu archive to install a malicious package within the build chroot. This issue affects pc-kernel versions prior to and including 2019-07-16

Frequently asked questions

What is CVE-2019-11480?: The pc-kernel snap build process hardcoded the --allow-insecure-repositories and --allow-unauthenticated apt options when creating the build chroot environment. This could allow an attacker who is able to perform a MITM attack between the build environment and the Ubuntu archive to install a malicious package within the build chroot. This issue affects pc-kernel versions prior to and including 2019-07-16
How severe is CVE-2019-11480?: CVE-2019-11480 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-11480 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11480?: CVE-2019-11480 affects Canonical C-kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-11480?: 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-2019-11480 published?: CVE-2019-11480 was published on 2020-04-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:canonical:c-kernel:*:*:*:*:*:*:*:*

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