How severe is CVE-2020-7211?

CVE-2020-7211 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-7211 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7211?

CVE-2020-7211 primarily affects Libslirp Project Libslirp. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-7211?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-7211 published?

CVE-2020-7211 was published on 2020-01-21 and last updated on 2026-06-17.

CVE-2020-7211

CVE-2020-7211 is a high-severity vulnerability in Libslirp Project Libslirp with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Libslirp Project Libslirp
Published: 2020-01-21
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2020-7211?: tftp.c in libslirp 4.1.0, as used in QEMU 4.2.0, does not prevent ..\ directory traversal on Windows.
How severe is CVE-2020-7211?: CVE-2020-7211 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-7211 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7211?: CVE-2020-7211 primarily affects Libslirp Project Libslirp. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-7211?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-7211 published?: CVE-2020-7211 was published on 2020-01-21 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:libslirp_project:libslirp:4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:*

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