What is CVE-2020-7211?

CVE-2020-7211 is a high-severity vulnerability in Libslirp Project, classified under Path Traversal. CVSS score: 7.5/10. Published 2020-01-21.

How severe is CVE-2020-7211?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Libslirp Project

CVE-2020-7211

tftp.c in libslirp 4.1.0, as used in QEMU 4.2.0, does not prevent ..\ directory traversal on Windows.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2020-01-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.043 (90.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000

Affected products

Libslirp Project — versions 4.1.0
Microsoft Windows
Qemu — versions 4.2.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

gitlab.freedesktop.org/slirp/libslirp/commit/14ec36e107a8c9af7d0a80c3571fe39b29… (Patch, Third Party Advisory)
www.openwall.com/lists/oss-security/2020/01/17/2 (Mailing List, Third Party Advisory)
security-tracker.debian.org/tracker/CVE-2020-7211 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2020-7211?: CVE-2020-7211 is a high-severity vulnerability in Libslirp Project, classified under Path Traversal. CVSS score: 7.5/10. Published 2020-01-21.
How severe is CVE-2020-7211?: High severity. CVSS v3 base score is 7.5 out of 10.