CVE-2017-15124: qemu
Vulnerability summary
CVE-2017-15124 is a high (CVSS 7.8) vulnerability in qemu. EPSS estimates a 2.84% chance of exploitation in the next 30 days, higher than 86.7% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 3% (FIRST, 04-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 3Timeline
- 09-01-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
VNC server implementation in Quick Emulator (QEMU) 2.11.0 and older was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A malicious remote VNC client could use this flaw to cause DoS to the server host.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · Red hatEcosystem advisory · calculated3.5LowCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.84%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.84% on 05-10-2026
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 cause- CWE-770Allocation of Resources Without Limits or ThrottlingThe product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat5 products
- qemu-img-ma< 10:2.12.0-18.el7
- qemu-kvm-common-ma< 10:2.12.0-18.el7
- qemu-kvm-ma< 10:2.12.0-18.el7
- qemu-kvm-ma-debuginfo< 10:2.12.0-18.el7
- qemu-kvm-tools-ma< 10:2.12.0-18.el7
Debian1 product
- qemu< 1:2.12~rc3+dfsg-1
Qemu1 product
- qemu2.11.0 and older | ≤ 2.11.0
Ubuntu1 product
- qemuAll versions (No fix recorded)
4 vendors · 8 products
References
27 links- bugzilla.redhat.com/show_bug.cgi?id=1525195X Refsource CONFIRMIssue TrackingThird Party AdvisoryREPORT
