csirt@kutim:~/threat-intel/cve/CVE-2026-42771

Katalog CVE

CVSS 6.2 · Medium EPSS 0,16%

Kerentanan Out-of-bounds Read pada openssl. Skor CVSS 3.1 6.2 (Medium) menurut CISA ADP.

Deskripsi (NVD)

Issue summary: When the X509_VERIFY_PARAM_set1_email is called by an application to validate a crafted e-mail address, such as during S/MIME message validation, an out of bounds read can happen. Impact summary: This out of bounds read will not directly exfiltrate the data read to the attacker so the most likely result is a crash and a Denial of Service. An internal helper function called from X509_VERIFY_PARAM_[set|add]_email() used a wrong length when validating the local part of an email address. This could cause the 64 octet limit on the local part of an email address to be not enforced, or cause an out of bound read and potentially a crash. The bug is reachable via S-MIME validation with a crafted From: address supplied in an email message that can potentially cause a crash. No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary.

Rincian

Terbit di NVD
9 Juni 2026
Terakhir diubah
23 Juli 2026
Status NVD
Analyzed
CVSS 3.1
6.2 (Medium), sumber CISA ADP
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-125: Out-of-bounds Read
EPSS (30 hari)
0,16% peluang dieksploitasi; lebih tinggi dari 4,7% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
openssl openssl Versi 4.0.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.