0xbekoo/cve-2026-8863Hashes and shim versions for the UEFI Secure Boot shims affected by CVE-2026-8863
Collection of the signed UEFI Secure Boot shim binaries affected by CVE-2026-8863, with the embedded shim version, Authenticode signer and revocation hashes of each image.
Releases that ship the byte-identical signed shim are collapsed onto a single row — one Authenticode hash is one dbx entry regardless of how many releases carry it.
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| Distribution | Releases | shim | Embedded vendor CA |
|---|
| CentOS | 7.2, 7.3 | 0.9 | Red Hat Inc. |
| Fedora | Server 24-1.2, 25-1.3, 26-1.5, SoaS 22.3, SoaS 23.10 | 0.8 | Fedora Secure Boot CA |
| openSUSE | Leap 42.1 | 0.9 | openSUSE Secure Boot CA |
| Rockstor Linux | 3.8-12 / 3.8-9.02, 3.9.0 / 3.9.1 | 0.7, 0.9 | Red Hat Inc. |
| ROSA Linux | R7, R8 / R9 | 0.9 | NTC IT ROSA LLC |
| Scientific Linux (SL) | 7.2, 7.3 | 0.9 | Red Hat Secure Boot (CA key 1) |
14 shim images across 6 distributions collapse to 6 unique Authenticode hashes; all are pre-SBAT (0.7, 0.8, 0.9) with no .sbat section, so they can only be retired through a dbx hash revocation.
| Releases | shim | Embedded Vendor CA | Signer | Issuer CA | Authenticode SHA256 | Authenticode SHA1 |
|---|---|---|---|---|---|---|
| 7.2, 7.3 | 0.9 | Red Hat Inc. | Microsoft Windows UEFI Driver Publisher | Microsoft Corporation UEFI CA 2011 | eb86fa1386fe6e4533b8b938dcc1250616d2f1c14c15e2fcf80834a161018a0a | 25469dfdfa56e50fdf4e208fcfac7c8757341019 |
| Releases | shim | Embedded Vendor CA | Signer | Issuer CA | Authenticode SHA256 | Authenticode SHA1 |
|---|---|---|---|---|---|---|
| Server 24-1.2, 25-1.3, 26-1.5, SoaS 22.3, SoaS 23.10 | 0.8 | Fedora Secure Boot CA | Microsoft Windows UEFI Driver Publisher | Microsoft Corporation UEFI CA 2011 | dbaf9e056d3d5b38b68553304abc88827ebc00f80cb9c7e197cdbc5822cd316c | a070bfbb64dc542d7b6b22de52d9b4d994b0d2f1 |
| Releases | shim | Embedded Vendor CA | Signer | Issuer CA | Authenticode SHA256 | Authenticode SHA1 |
|---|---|---|---|---|---|---|
| Leap 42.1 | 0.9 | openSUSE Secure Boot CA | Microsoft Windows UEFI Driver Publisher openSUSE Secure Boot Signkey | Microsoft Corporation UEFI CA 2011 openSUSE Secure Boot CA | 410260b1b6f5af5fbeeb9ea3220658435e876cb3247126ee907a437f312db373 | c86eeef7791b534ddfef6b79818187dee6919271 |
| Releases | shim | Embedded Vendor CA | Signer | Issuer CA | Authenticode SHA256 | Authenticode SHA1 |
|---|---|---|---|---|---|---|
| 3.8-12 / 3.8-9.02 | 0.7 | Red Hat Inc. | Microsoft Windows UEFI Driver Publisher Red Hat Inc. | Microsoft Corporation UEFI CA 2011 DigiCert EV Code Signing CA (SHA2) | 6dbbead23e8c860cf8b47f74fbfca5204de3e28b881313bb1d1eccdc4747934e | 3aab12bb9c4b6fc88d1de18f24e45dccd409fc92 |
| 3.9.0 / 3.9.1 | 0.9 | Red Hat Inc. | Microsoft Windows UEFI Driver Publisher | Microsoft Corporation UEFI CA 2011 | eb86fa1386fe6e4533b8b938dcc1250616d2f1c14c15e2fcf80834a161018a0a | 25469dfdfa56e50fdf4e208fcfac7c8757341019 |
The 3.9.0 / 3.9.1 shim is byte-identical to the CentOS 7.2/7.3 shim above, so both share the single Authenticode hash eb86fa13….
| Releases | shim | Embedded Vendor CA | Signer | Issuer CA | Authenticode SHA256 | Authenticode SHA1 |
|---|---|---|---|---|---|---|
| R7, R8 / R9 | 0.9 | NTC IT ROSA LLC | Microsoft Windows UEFI Driver Publisher | Microsoft Corporation UEFI CA 2011 | 236a9cb0d71951c36398a32eb660ce2cd4a52ccfa7cf751cc6a35d9de549e19b | 2c5f622319caa15a51fa355459b690174bbb439d |
| Releases | shim | Embedded Vendor CA | Signer | Issuer CA | Authenticode SHA256 | Authenticode SHA1 |
|---|---|---|---|---|---|---|
| 7.2, 7.3 | 0.9 | Red Hat Secure Boot (CA key 1) | Microsoft Windows UEFI Driver Publisher | Microsoft Corporation UEFI CA 2011 | 7b2a3f5c96f95bd8086ce54b0825e300f9c8f11fe3401bb631b3215c8de9eb10 | 9c95950a60d19a64610dc042334503f8dcaebcc4 |
