CVE catalog
CVE-2023-45236
EDK II vulnerabilities
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.99% · Oct 25, 2026
A security flaw has been identified in EDK2, the open-source reference implementation of the UEFI specification. This vulnerability enables an unauthorized attacker to potentially disclose sensitive information. edk2: Predictable TCP Initial Sequence Numbers The identified flaw in the NetworkPkg IP stack within the EDK2, an open-source UEFI implementation, poses a moderate security concern as the vulnerability allows an unauthenticated attacker within the same local network to exploit. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | edk2 | sid | 2026.08+ds-2 | fixed |
| Debian | edk2 | forky | 2026.08+ds-2 | fixed |
| Debian | edk2 | trixie | 2025.02-8+deb13u1 | fixed |
| Debian | edk2 | bookworm | 2022.11-6+deb12u2 | vulnerable |
| Debian | edk2 | bookworm-security | 2022.11-6+deb12u1 | vulnerable |
| Ubuntu | edk2 | noble | Not reported | vulnerable |
| Ubuntu | edk2 | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | efi-shell-aa64 | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | efi-shell-arm | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | efi-shell-ia32 | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | efi-shell-riscv64 | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | efi-shell-x64 | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | ovmf | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | ovmf-ia32 | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | qemu-efi-aarch64 | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | qemu-efi-arm | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | qemu-efi-riscv64 | noble | 2024.02-2ubuntu0.6 | fixed |
| Ubuntu | edk2 | pro | 0~20190606.20d2e5a1-2ubuntu1 | vulnerable |
| Ubuntu | edk2 | pro | 0~20190828.37eef910-3 | vulnerable |
| Ubuntu | edk2 | pro | 0~20190828.37eef910-4 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-1 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-1ubuntu1 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu1 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu2 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu3 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu3.1 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu3.2 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu3.3 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu3.4 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu3.5 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu3.6 | vulnerable |
| Ubuntu | edk2 | pro | 0~20191122.bd85bf54-2ubuntu3.6+esm1 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2021.08~rc0-2 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2021.08-3 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2021.11~rc1-1 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2021.11-1 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2021.11-2 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02~rc1-1 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02~rc1-1ubuntu1 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-1 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-2 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-3 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-3ubuntu0.22.04.1 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-3ubuntu0.22.04.2 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-3ubuntu0.22.04.3 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-3ubuntu0.22.04.4 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-3ubuntu0.22.04.5 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-3ubuntu0.22.04.6 | vulnerable |
| Ubuntu | edk2 | 22.04 | 2022.02-3ubuntu0.22.04.7 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2023.05-2 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2023.11-2 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2023.11-3 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2023.11-4 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2023.11-5 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2023.11-6 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2023.11-8 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-1 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2ubuntu0.1 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2ubuntu0.3 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2ubuntu0.4 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2ubuntu0.5 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2ubuntu0.6 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2ubuntu0.7 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2ubuntu0.8 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2ubuntu0.9 | vulnerable |
| Ubuntu | edk2 | 24.04 | 2024.02-2ubuntu0.10 | vulnerable |
| Suse | ovmf | linux enterprise module for package hub 15 sp6 | 202308-150600.5.14.1 | fixed |
| Suse | ovmf | linux enterprise module for server applications 15 sp6 | 202308-150600.5.14.1 | fixed |
| Opensuse | ovmf | leap 15.6 | 202308-150600.5.14.1 | fixed |
| Suse | ovmf | linux enterprise micro 5.5 | 202208-150500.6.9.1 | fixed |
| Suse | ovmf | linux enterprise high performance computing 15 sp5-espos | 202208-150500.6.9.1 | fixed |
| Suse | ovmf | linux enterprise high performance computing 15 sp5-ltss | 202208-150500.6.9.1 | fixed |
| Suse | ovmf | linux enterprise server 15 sp5-ltss | 202208-150500.6.9.1 | fixed |
| Suse | ovmf | linux enterprise server for sap applications 15 sp5 | 202208-150500.6.9.1 | fixed |
| Opensuse | ovmf | tumbleweed | 202405-1.1 | fixed |
| Suse | ovmf | linux enterprise micro 5.3 | 202202-150400.5.18.1 | fixed |
| Suse | ovmf | linux enterprise micro 5.4 | 202202-150400.5.18.1 | fixed |
| Suse | ovmf | linux enterprise high performance computing 15 sp4-espos | 202202-150400.5.18.1 | fixed |
| Suse | ovmf | linux enterprise high performance computing 15 sp4-ltss | 202202-150400.5.18.1 | fixed |
| Suse | ovmf | linux enterprise server 15 sp4-ltss | 202202-150400.5.18.1 | fixed |
| Suse | ovmf | linux enterprise server for sap applications 15 sp4 | 202202-150400.5.18.1 | fixed |
| Suse | ovmf | manager proxy 4.3 | 202202-150400.5.18.1 | fixed |
| Suse | ovmf | manager server 4.3 | 202202-150400.5.18.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | edk2 | source | sid | 2024.05-1 | not yet assigned | Not reported | [1063726] |
| Debian | edk2 | source | forky | 2024.05-1 | not yet assigned | Not reported | [1063726] |
| Debian | edk2 | source | trixie | 2024.05-1 | not yet assigned | Not reported | [1063726] |
| Debian | edk2 | source | bookworm | (unfixed) | not yet assigned | Not reported | [1063726] |
| Ubuntu | edk2 | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | efi-shell-aa64 | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | efi-shell-arm | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | efi-shell-ia32 | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | efi-shell-riscv64 | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | efi-shell-x64 | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | ovmf | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | ovmf-ia32 | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | qemu-efi-aarch64 | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | qemu-efi-arm | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Ubuntu | qemu-efi-riscv64 | deb | noble | 2024.02-2ubuntu0.6 | Not reported | Not reported | Not reported |
| Suse | ovmf | rpm | linux enterprise module for package hub 15 sp6 | 202308-150600.5.14.1 | Not reported | SUSE-SU-2025:0608-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise module for server applications 15 sp6 | 202308-150600.5.14.1 | Not reported | SUSE-SU-2025:0608-1 | Not reported |
| Opensuse | ovmf | rpm | leap 15.6 | 202308-150600.5.14.1 | Not reported | SUSE-SU-2025:0608-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise micro 5.5 | 202208-150500.6.9.1 | Not reported | SUSE-SU-2025:0609-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise high performance computing 15 sp5-espos | 202208-150500.6.9.1 | Not reported | SUSE-SU-2025:0609-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise high performance computing 15 sp5-ltss | 202208-150500.6.9.1 | Not reported | SUSE-SU-2025:0609-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise server 15 sp5-ltss | 202208-150500.6.9.1 | Not reported | SUSE-SU-2025:0609-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise server for sap applications 15 sp5 | 202208-150500.6.9.1 | Not reported | SUSE-SU-2025:0609-1 | Not reported |
| Opensuse | ovmf | rpm | tumbleweed | 202405-1.1 | Not reported | OPENSUSE-SU-2024:14336-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise micro 5.3 | 202202-150400.5.18.1 | Not reported | SUSE-SU-2025:0690-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise micro 5.4 | 202202-150400.5.18.1 | Not reported | SUSE-SU-2025:0690-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise high performance computing 15 sp4-espos | 202202-150400.5.18.1 | Not reported | SUSE-SU-2025:0690-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise high performance computing 15 sp4-ltss | 202202-150400.5.18.1 | Not reported | SUSE-SU-2025:0690-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise server 15 sp4-ltss | 202202-150400.5.18.1 | Not reported | SUSE-SU-2025:0690-1 | Not reported |
| Suse | ovmf | rpm | linux enterprise server for sap applications 15 sp4 | 202202-150400.5.18.1 | Not reported | SUSE-SU-2025:0690-1 | Not reported |
| Suse | ovmf | rpm | manager proxy 4.3 | 202202-150400.5.18.1 | Not reported | SUSE-SU-2025:0690-1 | Not reported |
| Suse | ovmf | rpm | manager server 4.3 | 202202-150400.5.18.1 | Not reported | SUSE-SU-2025:0690-1 | Not reported |
Notes
[bookworm] edk2: Minor issue
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://access.redhat.com/errata/RHSA-2024:5297]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2024_5297.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-45236]
- [https://osv.dev/vulnerability/SUSE-SU-2025:0608-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:0609-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:0690-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-45236]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:14336-1]
- [https://psirt.abb.com/csaf/2026/sa24p003.json]
- [https://security-tracker.debian.org/tracker/CVE-2023-45236]
- [https://ubuntu.com/security/notices/USN-7894-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0126.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]