---
id: CVE-2025-9230
title: |-
  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 Ser…
summary: |-
  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 Ser…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-125
  - CWE-787
published: '2025-09-30'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T02:18:27.243'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-9230'
references:
  - url: >-
      https://github.com/openssl/openssl/commit/5965ea5dd6960f36d8b7f74f8eac67a8eb8f2b45
    label: openssl-security@openssl.org
  - url: >-
      https://github.com/openssl/openssl/commit/9e91358f365dee6c446dcdcdb01c04d2743fd280
    label: openssl-security@openssl.org
  - url: >-
      https://github.com/openssl/openssl/commit/a79c4ce559c6a3a8fd4109e9f33c1185d5bf2def
    label: openssl-security@openssl.org
  - url: >-
      https://github.com/openssl/openssl/commit/b5282d677551afda7d20e9c00e09561b547b2dfd
    label: openssl-security@openssl.org
  - url: >-
      https://github.com/openssl/openssl/commit/bae259a211ada6315dc50900686daaaaaa55f482
    label: openssl-security@openssl.org
  - url: >-
      https://github.openssl.org/openssl/extended-releases/commit/c2b96348bfa662f25f4fabf81958ae822063dae3
    label: openssl-security@openssl.org
  - url: >-
      https://github.openssl.org/openssl/extended-releases/commit/dfbaf161d8dafc1132dd88cd48ad990ed9b4c8ba
    label: openssl-security@openssl.org
  - url: 'https://openssl-library.org/news/secadv/20250930.txt'
    label: openssl-security@openssl.org
  - url: 'http://www.openwall.com/lists/oss-security/2025/09/30/5'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2025/10/msg00001.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-032379.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-082556.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-089022.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-253495.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-485750.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-585531.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.01554
epssPercentile: 0.74655
ingestedAt: '2026-10-15T03:30:12.821Z'
vendor: OpenSSL
product: OpenSSL
affected:
  - OpenSSL >= 3.5.0 < 3.5.4
  - OpenSSL >= 3.4.0 < 3.4.3
  - OpenSSL >= 3.3.0 < 3.3.5
  - OpenSSL >= 3.2.0 < 3.2.6
  - OpenSSL >= 3.0.0 < 3.0.18
  - OpenSSL >= 1.1.1 < 1.1.1zd
  - OpenSSL >= 1.0.2 < 1.0.2zm
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2025-09-30T19:30:08.302408Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.