> CVE-2026-28390

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PUBLISHED
2026-04-07 22:16
MODIFIED
2026-04-07 22:16
EPSS (Prob. Exploit)
0.80%
Top 43.6%
DATA SOURCES:
NVD 🔗 2026-04-07 RED HAT 🔗 2026-04-12 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 MSRC 🔗 2026-11-02

> DESCRIPTION

Issue summary: During processing of a crafted CMS EnvelopedData message with KeyTransportRecipientInfo a NULL pointer dereference can happen. Impact summary: Applications that process attacker-controlled CMS data may crash before authentication or cryptographic operations occur resulting in Denial of Service. When a CMS EnvelopedData message that uses KeyTransportRecipientInfo with RSA-OAEP encryption is processed, the optional parameters field of RSA-OAEP SourceFunc algorithm identifier is examined without checking for its presence. This results in a NULL pointer dereference if the field is missing. Applications and services that call CMS_decrypt() on untrusted input (e.g., S/MIME processing or CMS-based protocols) are vulnerable. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> WEAKNESSES

CWE-476

> CWE DETAILED DESCRIPTIONS

CWE-476: NULL Pointer Dereference - The product dereferences a pointer that it expects to be valid but is NULL.

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> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> HISTORIQUE DES MODIFICATIONS

Première apparition
07/04/2026 22:16
Source: NVD
📊 ENRICHISSEMENT 01/05/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-476: NULL Pointer Dereference - The product dereferences a pointer that it expects to be valid but is NULL.
📊 ENRICHISSEMENT 12/04/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 12/04/2026 05:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 6 months ago

> REFERENCES

https://github.com/openssl/openssl/commit/01194a8f1941115cd0383bfa91c736dd3993c8...
https://github.com/openssl/openssl/commit/2e39b7a6993be445fddb9fbce316fa756e0397...
https://github.com/openssl/openssl/commit/af2a5fecd3e71a29e7568f9c1453dec5cebbaf...
https://github.com/openssl/openssl/commit/ea7b4ea4f9f853521ba34830cbcadc970d2e07...
https://github.com/openssl/openssl/commit/fd2f1a6cf53b9ceeca723a001aa4b825d7c7ee...
https://openssl-library.org/news/secadv/20260407.txt
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