CVE-2026-53671

Katalog CVE

CVSS 9.3 · Critical EPSS 0,51%

Kerentanan Incorrect Calculation. Skor CVSS 4.0 9.3 (Critical) menurut github.com.

Deskripsi (NVD)

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the abstract transformer in prevail treats writes through a T_CTX-typed base register as a silent no-op: do_mem_store in src/crab/ebpf_transformer.cpp only models T_STACK stores, and the checker's T_CTX bounds arm never tests AccessType::write. An attacker can craft an eBPF program that overwrites a context field (e.g., ctx->data), reload that field typed as T_PACKET, and dereference an attacker-controlled address — and prevail will report the program as safe. This issue has been patched in version 0.2.4.

Rincian

Terbit di NVD

2 September 2026

Terakhir diubah

9 September 2026

Status NVD

Awaiting Analysis

CVSS 4.0

9.3 (Critical), sumber github.com
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/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-682: Incorrect Calculation

EPSS (30 hari)

0,51% peluang dieksploitasi; lebih tinggi dari 41,5% 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/vbpf/prevail/commit/de65234f67d2608b54d12571edb585ead224363c
• https://github.com/vbpf/prevail/releases/tag/v0.2.4
• https://github.com/vbpf/prevail/security/advisories/GHSA-65rv-h458-cq99