It was found that vdsm before version 4.20.37 invokes qemu-img on untrusted inputs without limiting resources. By uploading a specially crafted image, an attacker could cause the qemu-img process to consume unbounded amounts of memory of CPU time, causing a denial of service condition that could potentially impact other users of the host.
Conclusion & alert: CVE-2018-10908 is rated Moderate Risk (49.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.19%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.32% | 1.19% | +0.86% |
| 2 | 2025-11-21 | 0.18% | 0.32% | +0.14% |
| 3 | 2025-11-18 | — | 0.18% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.0 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 6.3 | 3.0 | MEDIUM |
|
1.8 | 4.0 | [email protected] |
| 7.1 | 2.0 | HIGH |
|
8.6 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2018-10908 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ovirt | vdsm | < 4.20.37 | cpe:2.3:a:ovirt:vdsm:*:*:*:*:*:*:*:* |
| redhat | virtualization | 4.0 | cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://lists.nongnu.org/archive/html/qemu-block/2018-07/msg00488.html | Mailing List Vendor Advisory |
| https://access.redhat.com/errata/RHEA-2018:2624 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10908 | Issue Tracking Patch Third Party Advisory |
| https://gerrit.ovirt.org/#/c/93195/ | Patch Third Party Advisory |