CVE-2023-6693
Qemu: virtio-net: stack buffer overflow in virtio_net_flush_tx()
02 Description
Qemu: virtio-net: stack buffer overflow in virtio_net_flush_tx()
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.33% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 25.8% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-01-02 09:15Z2 YR AGO
- Last updated
- 2026-02-25 18:20Z8 MO AGO
- Reserved
- 2023-12-11
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.9)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
- Weaknesses
- Data version
- 5.2
- Document digest
- 9a8addcdfcb9968a064dd1d8960e4d00bf486333f5aa29a0fa35eccf35ea3aa1
05 Affected products
06 References
- access.redhat.comRHSA-2024:2962https://access.redhat.com/errata/RHSA-2024:2962
- access.redhat.comRHSA-2025:4492https://access.redhat.com/errata/RHSA-2025:4492
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-6693
- bugzilla.redhat.comRHBZ#2254580https://bugzilla.redhat.com/show_bug.cgi?id=2254580
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y/
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20240208-0004/
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/04/msg00042.html
07 Fixed in
Debian 12
- qemu Fixed in 1:7.2+dfsg-7+deb12u4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qemu Fixed in 1:8.2.0+ds-3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qemu Fixed in 1:8.2.0+ds-3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- qemu Fixed in 1:6.2+dfsg-2ubuntu6.22
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.