CVE-2026-12681

Katalog CVE

CVSS 8.9 · High EPSS 0,27%

Kerentanan Improper Validation of Specified Index, Position, or Offset in Input. Skor CVSS 4.0 8.9 (High) menurut google.com.

Deskripsi (NVD)

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Google go-attestation. parseEfiSignatureList() does not advance the buffer past vendor bytes before reading entries. For hashSHA256SigGUID lists, this allows attacker-controlled vendor header bytes to be appended to the trusted SHA256 hash list. A crafted TPM event log could inject arbitrary SHA256 hashes into the verifier's trusted measurement database, enabling a remote attestation verifier to accept a compromised boot state. This issue affects go-attestation: through 0.6.0.

Rincian

Terbit di NVD

24 Juni 2026

Terakhir diubah

25 Juni 2026

Status NVD

Awaiting Analysis

CVSS 4.0

8.9 (High), sumber google.com
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-1285: Improper Validation of Specified Index, Position, or Offset in Input

EPSS (30 hari)

0,27% peluang dieksploitasi; lebih tinggi dari 17,6% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/google/go-attestation/commit/b6e905e7ae52937f02b5ca494dd1c6a3ac7a1003
• https://github.com/google/go-attestation/releases/tag/v0.6.1
• https://github.com/google/go-attestation/security/advisories/GHSA-9r4w-jg96-92mv