A vulnerability was found in libvirt. This security flaw ouccers due to repeatedly querying an SR-IOV PCI device's capabilities that exposes a memory leak caused by a failure to free the virPCIVirtualFunction array within the parent struct's g_autoptr cleanup.
CVE-2023-2700
Score 5.5 from GitHub Security Advisory published 2023-05-16. NVD baseline CVSS 5.5; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EG Risk
- 25(Track)EG Risk 25/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity55% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 16.9%
- KEV
- Not listed
Published
May 15, 2023
Last Modified
January 28, 2025
References (10)
- secalert@redhathttps://access.redhat.com/security/cve/CVE-2023-2700
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2203653
- secalert@redhathttps://gitlab.com/libvirt/libvirt/-/commit/6425a311b8ad19d6f9c0b315bf1d722551ea3585#874a1e768ade6ceb4538931cbc06248e73223306
- secalert@redhathttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVK6JKP36CHE7YAFDJNPNLTW4OWJJ7TQ/
- secalert@redhathttps://security.netapp.com/advisory/ntap-20230706-0001/
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-2700
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2203653
- af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/libvirt/libvirt/-/commit/6425a311b8ad19d6f9c0b315bf1d722551ea3585#874a1e768ade6ceb4538931cbc06248e73223306
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVK6JKP36CHE7YAFDJNPNLTW4OWJJ7TQ/
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230706-0001/
Vendor Advisories for CVE-2023-2700(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2023:4799Red Hat Product SecurityMedium
Red Hat Security Advisory: virt:rhel and virt-devel:rhel security and bug fix update
- RHSA-2023:3822Red Hat Product SecurityMedium
Red Hat Security Advisory: virt:rhel and virt-devel:rhel security and bug fix update
- RHSA-2023:3715Red Hat Product SecurityMedium
Red Hat Security Advisory: libvirt security update
Patch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libvirt-doc (9.0.0-2ubuntu1.1) @ lunar | 2026-05-25 | ubuntu |
| redhat | virt:rhel-8060020230804183137.ad008a3a | 2023-08-29 | redhat |
| redhat | virt:rhel-8080020230612161741.63b34585 | 2023-06-27 | redhat |
| redhat | libvirt-0:9.0.0-10.2.el9_2 | 2023-06-21 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(2)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Microsoft MSRCCVE-2023-27002024-06-30
A vulnerability was found in libvirt. This security flaw ouccers due to repeatedly querying an SR-IOV PCI device's capabilities that exposes a memory leak caused by a failure to free the virPCIVirtualFunction array within the parent struct's g_autoptr cleanup.
- UbuntuUSN-6126-1MEDIUM
libvirt vulnerabilities
Data Freshness Timeline
(refreshed 13× in last 7d / 48× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 110 total refreshes for this CVE.
- 2026-07-24 14:15 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2023-2700?
When was CVE-2023-2700 disclosed?
Is CVE-2023-2700 actively exploited?
What is the CVSS score of CVE-2023-2700?
How do I remediate CVE-2023-2700?
Dependency Blast Radius
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