CVE-2024-6505: Qemu-kvm: virtio-net: queue index out-of-bounds access in software rss
Vulnerability summary
CVE-2024-6505 is a medium (CVSS 6.8) Out-of-bounds Read vulnerability in qemu. EPSS estimates a 0.66% chance of exploitation in the next 30 days, higher than 51.4% of scored vulnerabilities.
Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 5Timeline
- 05-07-2024PublishedVulnerability first disclosed.
- 08-11-2025Last modifiedVulnerability information updated.
Description
A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host.
CVSS metrics
6 scores · 6 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
- NVDNIST6.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
EPSS trend
Probability
0.66%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.66% 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, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard14 products
- qemu< 11.0.1-r0
- qemu-block-iscsi< 11.0.1-r0
- qemu-block-rbd< 11.0.1-r0
- qemu-edk2-aarch64< 11.0.1-r0
- qemu-edk2-x86_64< 11.0.1-r0
Wolfi14 products
- qemu< 11.0.1-r0
- qemu-block-iscsi< 11.0.1-r0
- qemu-block-rbd< 11.0.1-r0
- qemu-edk2-aarch64< 11.0.1-r0
- qemu-edk2-x86_64< 11.0.1-r0
Debian1 product
- qemu< 1:7.2+dfsg-7+deb12u8 | < 1:9.0.2+ds-3
Qemu1 product
- qemuna
Redhat1 product
- enterprise_linux8.0 | 9.0
Ubuntu1 product
- qemu< 1:6.2+dfsg-2ubuntu6.27 | < 1:8.2.2+ds-0ubuntu1.10
6 vendors · 32 products
References
11 links- access.redhat.com/security/cve/CVE-2024-6505VDB EntryX Refsource REDHATREPORTAdvisoryThird Party Advisory
Show all 11 references
- gitlab.com/qemu-project/qemuPACKAGE