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CVE-2020-27348

22
FAUCET Score

CVE-2020-27348 describes a vulnerability in Snapcraft where snap packages, under certain conditions, include the current directory in LD_LIBRARY_PATH. This flaw allows a malicious snap to achieve code execution within the context of another snap if both utilize the home interface or similar, affecting Snapcraft versions prior to 4.4.4 and specific 2.43.1 versions. The vulnerability has a CVSS score of 6.8 (Medium), indicating a local attack vector with low complexity, requiring user interaction, and potentially leading to high confidentiality and integrity impacts. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion, with only one Reddit mention.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4.4CPE matchmatch criteria
cpe:2.3:a:canonical:snapcraft:*:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:*:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:*:*:*:*
>= 2.43.1, < 2.43.1+16.04.1CPE match
cpe:2.3:a:canonical:snapcraft:*:*:*:*:*:*:*:*
>= 4.4, < 4.4.4CPE match
cpe:2.3:a:canonical:snapcraft:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
1.3
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 80th percentile among its peer group of 382 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: snapcraftFixed in: 4.4.4

Vendor Advisories (1)

pipGHSA-qxm5-vx5j-pp6wmedium

snapcraft Access Restriction Bypass

May 24, 2022

References

bugs.launchpad.net / bugs/1901572
ExploitIssue TrackingThird Party Advisory
github.com / snapcore/snapcraft/pull/3345
Third Party Advisory
usn.ubuntu.com / usn/usn-4661-1
PatchThird Party Advisory