How severe is CVE-2018-0501?

CVE-2018-0501 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-0501 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0501?

CVE-2018-0501 primarily affects Debian Advanced Package Tool. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0501?

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

When was CVE-2018-0501 published?

CVE-2018-0501 was published on 2018-08-21 and last updated on 2026-06-17.

CVE-2018-0501

CVE-2018-0501 is a medium-severity vulnerability in Debian Advanced Package Tool with a CVSS 3.x base score of 5.9. 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-347.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Debian Advanced Package Tool
Published: 2018-08-21
Last modified: 2026-06-17

Description

The mirror:// method implementation in Advanced Package Tool (APT) 1.6.x before 1.6.4 and 1.7.x before 1.7.0~alpha3 mishandles gpg signature verification for the InRelease file of a fallback mirror, aka mirrorfail.

Frequently asked questions

What is CVE-2018-0501?: The mirror:// method implementation in Advanced Package Tool (APT) 1.6.x before 1.6.4 and 1.7.x before 1.7.0~alpha3 mishandles gpg signature verification for the InRelease file of a fallback mirror, aka mirrorfail.
How severe is CVE-2018-0501?: CVE-2018-0501 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-0501 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0501?: CVE-2018-0501 primarily affects Debian Advanced Package Tool. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0501?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-0501 published?: CVE-2018-0501 was published on 2018-08-21 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*
cpe:2.3:a:debian:advanced_package_tool:1.7.0:alpha:*:*:*:*:*:*
cpe:2.3:a:debian:advanced_package_tool:1.7.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:debian:advanced_package_tool:1.7.0:alpha2:*:*:*:*:*:*

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