P4Verified

CVE-2026-74876: openssl encrypt before 1.4.0 (exclusive); +1 more affected products

CVE-2026-74876. CVSS 3.1 base score 9.8 (CRITICAL, Vendor/CNA). EPSS 0.00348 (percentile 0.26187), scored 2026-10-06.

Affected technology

openssl encrypt · before 1.4.0 (exclusive)
jahlives

openssl_encrypt · 0 to before 1.4.0
jahlives

Description’s affected range: versions before 1.4.0

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Attackers can call from_dict() followed by to_identity() without signature verification to encrypt data using attacker-controlled public keys, leaking secrets. Vendor/CNA’s CVSS 4.0 assessment (base score 9.3/10) rates confidentiality, integrity and availability impact as high.

Published 2026-10-08 17:34:44.326773+00:00

CWE: CWE-347
CCR priority: 39.3 /100 (P4)
CVSS 3.1: 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00348 · percentile 0.26292 · 2026-10-08
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-74876.html