CVE-2025-9230

CRITICAL
INFO Priority: 0.17 BB Relevance: 80/100
Published: 2025-09-30 Modified: 2026-11-09 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Issue summary: An application trying to decrypt CMS messages encrypted using password based encryption can trigger an out-of-bounds read and write. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service for an application. The out-of-bounds write can cause a memory corruption which can have various consequences including a Denial of Service or Execution of attacker-supplied code. Although the consequences of a successful exploit of this vulnerability could be severe, the probability that the attacker would be able to perform it is low. Besides, password based (PWRI) encryption support in CMS messages is very rarely used. For that reason the issue was assessed as Moderate severity according to our Security Policy. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary.

Weakness Classification (2)

Affected Software (15)

VendorProductVersion
OpenSSL OpenSSL 3.5.0 < 3.5.4
OpenSSL OpenSSL 3.4.0 < 3.4.3
OpenSSL OpenSSL 3.3.0 < 3.3.5
OpenSSL OpenSSL 3.2.0 < 3.2.6
OpenSSL OpenSSL 3.0.0 < 3.0.18
OpenSSL OpenSSL 1.1.1 < 1.1.1zd
OpenSSL OpenSSL 1.0.2 < 1.0.2zm
debian debian_linux 11.0
openssl openssl 1.0.2 – 1.0.2zm
siemens sidis_prime < 4.0.800
siemens sidis_secured_smartplug_firmware < 7.26.0310
siemens simatic_cn_4100_firmware < 5.0
siemens simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware 3.15
siemens simatic_s7-1500_tm_mfp_firmware < 1.1.1
siemens sinec_os < 3.3

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

1.78%
Raw Score 0.017810
Percentile 78.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.01781
2026-11-12
0.01781
2026-11-10
0.01718
2026-11-09
0.01638
2026-11-08
0.01638
2026-11-07
0.01499
2026-11-06
0.01554

Intelligence Sources

mitre ref →
nvd ref →