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CVE-2023-1544
Qemu: pvrdma: out-of-bounds read in pvrdma_ring_next_elem_read()
Medium6.0EPSS 0.31%
- Published
- Updated
- Reserved
- Assigned by
- fedora
Description
A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to allocate and initialize a huge number of page tables to be used as a ring of descriptors for CQ and async events, potentially leading to an out-of-bounds read and crash of QEMU.
Timeline
ID reserved
By fedora
- 2 days later
· 2 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| fedoraCNA (assigner) | 3.1 | Medium6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium6.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.31% · top 76% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.0.
Weakness
Affected products
qemu
- unaffected 8.2.0-rc0 – < *
References (5)
- https://access.redhat.com/security/cve/CVE-2023-1544 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=2180364 (opens in a new tab)x_transferred
- https://lists.nongnu.org/archive/html/qemu-devel/2023-03/msg00206.html (opens in a new tab)x_transferred
- https://security.netapp.com/advisory/ntap-20230511-0005/ (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2025/04/msg00042.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-1544)Record last updated .