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Fencer Vulns
critical 9.8

CVE-2018-6758 json

The uwsgi_expand_path function in core/utils.c in Unbit uWSGI through 2.0.15 has a stack-based buffer overflow via a large directory length.

published 2018-02-06 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-18505

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

The uwsgi_expand_path function in core/utils.c in Unbit uWSGI through 2.0.15 has a stack-based buffer overflow via a large directory length.

Patch / fix

  • uwsgi Debian 14, Debian 13, Debian 12 2.0.15-10.2

debian advisories DEBIAN-CVE-2018-6758

  • uwsgi Ubuntu 14.04 LTS 1.9.17.1-5ubuntu0.1
  • uwsgi Ubuntu 16.04 LTS 2.0.12-5ubuntu3.2

ubuntu advisories UBUNTU-CVE-2018-6758

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • uwsgi openSUSE Tumbleweed 2.0.19.1-3.10

opensuse advisories openSUSE-SU-2024:11490-1

  • uwsgi Alpine 3.24, Alpine 3.23, Alpine 3.22 +18 more 2.0.16-r0

alpine advisories ALPINE-CVE-2018-6758

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-6758 updated cvss 7.3

uwsgi: Stack-based buffer overflow in core/utils.c:uwsgi_expand_path() can lead to crash and potential code execution

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.05% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.