CVE-2020-7211: libslirp_project libslirp
Vulnerability summary
CVE-2020-7211 is a high (CVSS 7.5) vulnerability in libslirp_project libslirp. EPSS estimates a 4.19% chance of exploitation in the next 30 days, higher than 90.9% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 8 · Related 7Timeline
- 21-01-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
tftp.c in libslirp 4.1.0, as used in QEMU 4.2.0, does not prevent ..\ directory traversal on Windows.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
4.19%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
Decrease -0.12 pp
From 4.31% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- libslirp< 4.3.1-1
Libslirp_project1 product
- libslirp4.1.0
Qemu1 product
- qemu4.2.0
3 vendors · 3 products
References
4 links- gitlab.freedesktop.org/slirp/libslirp/commit/14ec36e107a8c9af7d0a80c3571fe39b291ff1d4X Refsource MISCPatchThird Party Advisory
security-tracker.debian.org/tracker/CVE-2020-7211Vendor AdvisoryX Refsource DEBIANAdvisoryThird Party Advisory