CVE-2024-0727

Application crash via unchecked PKCS12 ContentInfo fields

Published Jan 26, 2024 · Updated May 12, 2026

NULL pointer dereference in OpenSSL 1.0.2, 1.1.1, and 3.0 through 3.2 allows attackers to crash applications via crafted PKCS12 files. PKCS12 decoding APIs dereference optional PKCS7 ContentInfo data after validating its type but without checking whether the data pointer is NULL. Exploitation requires a consuming application or user to load an untrusted PKCS12 file; the resulting impact is termination of that application, while the OpenSSL FIPS modules are unaffected.

CVSS severity5.5
Medium
EPSS probability3.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in OpenSSL 1.0.2, 1.1.1, and 3.0 through 3.2 allows attackers to crash applications via crafted PKCS12 files. PKCS12 decoding APIs dereference optional PKCS7 ContentInfo data after validating its type but without checking whether the data pointer is NULL. Exploitation requires a consuming application or user to load an untrusted PKCS12 file; the resulting impact is termination of that application, while the OpenSSL FIPS modules are unaffected.

The record

CVE
CVE-2024-0727
Published
Jan 26, 2024
Updated
May 12, 2026
Vendor
Siemens
Product
SINEC NMS
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 26, 2024CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <V3.0 SP1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · SINEC NMSversion=0 <V3.0 SP1
Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
OpenSSL Project · OpenSSLversion=1.0.2 <1.0.2zj; version=1.1.1 <1.1.1x; version=3.0.0 <3.0.13; version=3.1.0 <3.1.5; version=3.2.0 <3.2.1
Siemens · SIDIS Primeversion=0 <V4.0.700

Published CVSS scores

5.5GitHub Advisory DatabaseCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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