# libvirt0 4.0.0-1ubuntu8.21+esm1: libvirt0 4.0.0-1ubuntu8.21+esm1 for Ubuntu 18.04.6 LTS (bionic)

libvirt0 4.0.0-1ubuntu8.21+esm1, released August 20, 2026, fixes 7 CVEs in libvirt0. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-libvirt0-4.0.0-1ubuntu8.21-esm1
- Platform: Linux
- Released: Aug 20, 2026
- Priority: Routine (Closes 7 CVEs, none high severity)
- CVEs: 7, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libvirt0](https://patchblox.com/security/data/product/linux/libvirt0.md) | Ubuntu 18.04.6 LTS (bionic) | 4.0.0-1ubuntu8.21+esm1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2024-1441](https://patchblox.com/security/data/cve/CVE-2024-1441.md) | Routine | libnss-libvirt: An off-by-one error flaw was found in the udevListInterfacesByStatus() function in libvirt when the number of interfa... | 5.5 | 0.0040 |  |
| [CVE-2024-2494](https://patchblox.com/security/data/cve/CVE-2024-2494.md) | Routine | libnss-libvirt: A flaw was found in the RPC library APIs of libvirt | 6.2 | 0.0037 |  |
| [CVE-2024-2496](https://patchblox.com/security/data/cve/CVE-2024-2496.md) | Routine | libnss-libvirt: A NULL pointer dereference flaw was found in the udevConnectListAllInterfaces() function in libvirt | 5.5 | 0.0025 |  |
| [CVE-2026-61477](https://patchblox.com/security/data/cve/CVE-2026-61477.md) | Routine | Libvirt: libvirt: newline injection in network xml dns txt/srv fields allows dnsmasq config directive injection | 2.3 | 0.0016 |  |
| [CVE-2025-13193](https://patchblox.com/security/data/cve/CVE-2025-13193.md) | Routine | Libvirt: information disclosure via world-readable vm snapshots | 5.5 | 0.0013 |  |
| [CVE-2026-63623](https://patchblox.com/security/data/cve/CVE-2026-63623.md) | Routine | Libvirt: information disclosure via world-readable storage volume images during clone/convert | 5.5 | 0.0010 |  |
| [CVE-2026-61478](https://patchblox.com/security/data/cve/CVE-2026-61478.md) | Routine | libvirt vulnerability | n/a | n/a |  |

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Data as of 2026-11-12T01:51:14Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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