tftp.c in libslirp 4.1.0, as used in QEMU 4.2.0, does not prevent ..\ directory traversal on Windows.
Priority MEDIUM 40CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-22 and the CVSS impact.
Summary
tftp.c in libslirp 4.1.0, as used in QEMU 4.2.0, does not prevent ..\ directory traversal on Windows.
Why it matters now
EPSS 0.04193 91st percentileScored 2026-11-07
Fix Fixed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libslirp_project:libslirp:4.1.0:*:*:*:*:*:*:* | 4.1.0 | Vulnerable | Libslirp Project |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:* | 4.2.0 | Vulnerable | QEMU |
- cpe:2.3:a:libslirp_project:libslirp:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·Libslirp Project
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:* Versions 4.2.0 Vulnerable ·QEMU
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4.3 | Fixed | — |
Not affected: 9 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 8 Advanced Virtualization
- Red Hat OpenShift Container Platform 4.3
- Red Hat OpenStack Platform 10 (Newton)
- Red Hat OpenStack Platform 13 (Queens)
- Red Hat Virtualization 4
Timeline
- 2026-10-02 Threatist record created from CVE-2020-7211
- 2026-10-03 Alias added: GHSA-g6ww-98w5-h2gm
References
Sources
- CVE-2020-7211 · CVE Program
- CVE-2020-7211 · NVD
- FIRST EPSS
- GHSA-g6ww-98w5-h2gm · GitHub Advisory Database · CC BY 4.0
- CVE-2020-7211 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences