What is CVE-2017-1000455?

CVE-2017-1000455 is a medium-severity vulnerability in GNU Guixsd, classified under Origin Validation Error. CVSS score: 5.5/10. Published 2018-01-02.

How severe is CVE-2017-1000455?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in GNU Guixsd

CVE-2017-1000455

GuixSD prior to Git commit 5e66574a128937e7f2fcf146d146225703ccfd5d used POSIX hard links incorrectly, leading the creation of setuid executables in "the store", violating a fundamental security assumption of GNU Guix.

Published 2018-01-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

GNU Guixsd

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

lists.gnu.org/archive/html/guix-devel/2017-10/msg00090.html (Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2017-1000455?: CVE-2017-1000455 is a medium-severity vulnerability in GNU Guixsd, classified under Origin Validation Error. CVSS score: 5.5/10. Published 2018-01-02.
How severe is CVE-2017-1000455?: Medium severity. CVSS v3 base score is 5.5 out of 10.