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CVE-2018-0501

22
FAUCET Score

CVE-2018-0501 describes a vulnerability in Advanced Package Tool (APT) versions 1.6.x before 1.6.4 and 1.7.x before 1.7.0~alpha3, affecting Debian and Ubuntu Linux. The flaw, dubbed "mirrorfail," allows APT to mishandle GPG signature verification for the InRelease file when using a fallback mirror. This medium-severity vulnerability (CVSS 5.9) has a network attack vector and high integrity impact, meaning an attacker could potentially inject malicious packages. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
>= 1.6.0, < 1.6.4CPE matchmatch criteria
cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*
1.7.0CPE matchmatch criteria
cpe:2.3:a:debian:advanced_package_tool:1.7.0:alpha:*:*:*:*:*:*
1.7.0CPE matchmatch criteria
cpe:2.3:a:debian:advanced_package_tool:1.7.0:alpha1:*:*:*:*:*:*
1.7.0CPE matchmatch criteria
cpe:2.3:a:debian:advanced_package_tool:1.7.0:alpha2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.95%
Probability of exploitation in next 30 days
EPSS Percentile
57.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0095 is in the 16th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

mirror.fail
Third Party AdvisoryURL Repurposed
salsa.debian.org / apt-team/apt/commit/29658a3a74af49e2a24e17bdebb20e1612aac3ec
PatchThird Party Advisory
salsa.debian.org / apt-team/apt/commit/aebd4278bacc728ab00ebe31556983e140f60e47
PatchThird Party Advisory
usn.ubuntu.com / 3746-1
Third Party Advisory