CVE & CISA-KEV Catalog

CVE-2023-45237

MEDIUM
5.3
CVSS v3
NVD

Description

EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

CWE-338

How to fix

Remediation Available
edk2Debian
Fixed in:2024.05-1CVE-2023-45237
Fixed in:2024.05-1CVE-2023-45237
edk2Rocky
Fixed in:0:20220126gitbb1bba3d77-13.el8_10.2RHSA-2024:5297
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
edk2Red Hat / RHEL
Fixed in:0:20220126gitbb1bba3d77-13.el8_10.2RHSA-2024:5297
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
edk2-aarch64Red Hat / RHEL
Fixed in:0:20220126gitbb1bba3d77-13.el8_10.2RHSA-2024:5297
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
edk2-aarch64Rocky
Fixed in:0:20220126gitbb1bba3d77-13.el8_10.2RHSA-2024:5297
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
edk2-debugsourceRed Hat / RHEL
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
edk2-debugsourceRocky
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
edk2-ovmfRed Hat / RHEL
Fixed in:0:20220126gitbb1bba3d77-13.el8_10.2RHSA-2024:5297
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
edk2-ovmfRocky
Fixed in:0:20220126gitbb1bba3d77-13.el8_10.2RHSA-2024:5297
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
edk2-toolsRed Hat / RHEL
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
edk2-toolsRocky
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
edk2-tools-debuginfoRocky
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
edk2-tools-debuginfoRed Hat / RHEL
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
edk2-tools-docRed Hat / RHEL
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
edk2-tools-docRocky
Fixed in:0:20231122-6.el9_4.2RHSA-2024:4749
Fixed in:0:20221207gitfff6d81270b5-9.el9_2.3RHSA-2024:4419
edk2Ubuntu
Fixed in:2022.02-3ubuntu0.22.04.4USN-7894-1
Fixed in:2024.02-2ubuntu0.6USN-7894-1
ovmfUbuntu
Fixed in:2022.02-3ubuntu0.22.04.4USN-7894-1
Fixed in:2024.02-2ubuntu0.6USN-7894-1
ovmf-ia32Ubuntu
Fixed in:2022.02-3ubuntu0.22.04.4USN-7894-1
Fixed in:2024.02-2ubuntu0.6USN-7894-1
qemu-efiUbuntu
Fixed in:2022.02-3ubuntu0.22.04.4USN-7894-1
qemu-efi-aarch64Ubuntu
Fixed in:2022.02-3ubuntu0.22.04.4USN-7894-1
Fixed in:2024.02-2ubuntu0.6USN-7894-1
qemu-efi-armUbuntu
Fixed in:2022.02-3ubuntu0.22.04.4USN-7894-1
Fixed in:2024.02-2ubuntu0.6USN-7894-1
qemu-efi-riscv64Ubuntu
Fixed in:2024.02-2ubuntu0.6USN-7894-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.99%probability of exploitation in 30 days
58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Vendor Advisory1
Mailing List1
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-04.