CVE-2018-20815: qemu
Vulnerability summary
CVE-2018-20815 is a critical (CVSS 9.8) vulnerability in qemu. EPSS estimates a 4.43% chance of exploitation in the next 30 days, higher than 91.3% of scored vulnerabilities.
Severe, CVSS 9.8 (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 20 · Related 15Timeline
- 31-05-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In QEMU 3.1.0, load_device_tree in device_tree.c calls the deprecated load_image function, which has a buffer overflow risk.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · Red hatEcosystem advisory · calculated7.0HighCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
4.43%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.43% 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.
Redhat10 products
- qemu-img-ma< 10:2.12.0-18.el7_6.4
- qemu-img-rhev< 10:2.12.0-18.el7_6.6
- qemu-kvm-common-ma< 10:2.12.0-18.el7_6.4
- qemu-kvm-common-rhev< 10:2.12.0-18.el7_6.6
- qemu-kvm-ma< 10:2.12.0-18.el7_6.4
Debian1 product
- qemu< 1:3.1+dfsg-7
Qemu1 product
- qemu3.1.0
Ubuntu1 product
- qemu< 2.0.0+dfsg-2ubuntu1.46 | < 1:2.5+dfsg-5ubuntu10.38 | < 1:2.11+dfsg-1ubuntu7.13
4 vendors · 13 products
