CVE-2026-103601

Katalog CVE

CVSS 8.2 · High EPSS 0,29%

Kerentanan Improper Validation of Integrity Check Value. Skor CVSS 4.0 8.2 (High) menurut CNA.

Deskripsi (NVD)

Release of unverified plaintext in the CCM (CcmBlockCipher) and DSTU 7624 CCM (KCcmBlockCipher) AEAD modes in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker to obtain decryptions of ciphertexts of their choosing via forged messages sent to an application that lets the output buffer of a failed decryption be observed, for example through buffer reuse or logging, because decryption wrote the recovered plaintext into the caller-supplied output buffer before checking the authentication tag and left it there when the check failed. Only decryption into a caller-supplied buffer is affected; methods that return a newly allocated array are not.

Rincian

Terbit di NVD

2 Oktober 2026

Terakhir diubah

2 Oktober 2026

Status NVD

Undergoing Analysis

CVSS 4.0

8.2 (High), sumber CNA
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/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-354: Improper Validation of Integrity Check Value

EPSS (30 hari)

0,29% peluang dieksploitasi; lebih tinggi dari 19,5% 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/bcgit/bc-csharp/commit/4ddb1d0bfeae3a81b18f4446d8cc8a7871bd2d9f
• https://github.com/bcgit/bc-csharp/commit/e0868323645a063cb2479646e93c1449dc338de5
• https://github.com/bcgit/bc-csharp/wiki/CVE-2026-103601