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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-28390

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 8.8%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-28390
  • Openssl » Openssl » Version: 1.0.2
    cpe:2.3:a:openssl:openssl:1.0.2
  • Openssl » Openssl » Version: 1.0.2a
    cpe:2.3:a:openssl:openssl:1.0.2a
  • Openssl » Openssl » Version: 1.0.2b
    cpe:2.3:a:openssl:openssl:1.0.2b
  • Openssl » Openssl » Version: 1.0.2c
    cpe:2.3:a:openssl:openssl:1.0.2c
  • Openssl » Openssl » Version: 1.0.2d
    cpe:2.3:a:openssl:openssl:1.0.2d
  • Openssl » Openssl » Version: 1.0.2e
    cpe:2.3:a:openssl:openssl:1.0.2e
  • Openssl » Openssl » Version: 1.0.2f
    cpe:2.3:a:openssl:openssl:1.0.2f
  • Openssl » Openssl » Version: 1.0.2g
    cpe:2.3:a:openssl:openssl:1.0.2g
  • Openssl » Openssl » Version: 1.0.2h
    cpe:2.3:a:openssl:openssl:1.0.2h
  • Openssl » Openssl » Version: 1.0.2i
    cpe:2.3:a:openssl:openssl:1.0.2i
  • Openssl » Openssl » Version: 1.0.2j
    cpe:2.3:a:openssl:openssl:1.0.2j
  • Openssl » Openssl » Version: 1.0.2k
    cpe:2.3:a:openssl:openssl:1.0.2k
  • Openssl » Openssl » Version: 1.0.2l
    cpe:2.3:a:openssl:openssl:1.0.2l
  • Openssl » Openssl » Version: 1.0.2m
    cpe:2.3:a:openssl:openssl:1.0.2m
  • Openssl » Openssl » Version: 1.0.2n
    cpe:2.3:a:openssl:openssl:1.0.2n
  • Openssl » Openssl » Version: 1.0.2o
    cpe:2.3:a:openssl:openssl:1.0.2o
  • Openssl » Openssl » Version: 1.0.2p
    cpe:2.3:a:openssl:openssl:1.0.2p
  • Openssl » Openssl » Version: 1.0.2q
    cpe:2.3:a:openssl:openssl:1.0.2q
  • Openssl » Openssl » Version: 1.0.2r
    cpe:2.3:a:openssl:openssl:1.0.2r
  • Openssl » Openssl » Version: 1.0.2s
    cpe:2.3:a:openssl:openssl:1.0.2s
  • Openssl » Openssl » Version: 1.0.2t
    cpe:2.3:a:openssl:openssl:1.0.2t
  • Openssl » Openssl » Version: 1.0.2u
    cpe:2.3:a:openssl:openssl:1.0.2u
  • Openssl » Openssl » Version: 1.0.2v
    cpe:2.3:a:openssl:openssl:1.0.2v
  • Openssl » Openssl » Version: 1.0.2w
    cpe:2.3:a:openssl:openssl:1.0.2w
  • Openssl » Openssl » Version: 1.0.2x
    cpe:2.3:a:openssl:openssl:1.0.2x
  • Openssl » Openssl » Version: 1.0.2y
    cpe:2.3:a:openssl:openssl:1.0.2y
  • Openssl » Openssl » Version: 1.0.2za
    cpe:2.3:a:openssl:openssl:1.0.2za
  • Openssl » Openssl » Version: 1.0.2zb
    cpe:2.3:a:openssl:openssl:1.0.2zb
  • Openssl » Openssl » Version: 1.0.2zc
    cpe:2.3:a:openssl:openssl:1.0.2zc
  • Openssl » Openssl » Version: 1.0.2zd
    cpe:2.3:a:openssl:openssl:1.0.2zd
  • Openssl » Openssl » Version: 1.0.2ze
    cpe:2.3:a:openssl:openssl:1.0.2ze
  • Openssl » Openssl » Version: 1.0.2zf
    cpe:2.3:a:openssl:openssl:1.0.2zf
  • Openssl » Openssl » Version: 1.0.2zg
    cpe:2.3:a:openssl:openssl:1.0.2zg
  • Openssl » Openssl » Version: 1.0.2zh
    cpe:2.3:a:openssl:openssl:1.0.2zh
  • Openssl » Openssl » Version: 1.0.2zi
    cpe:2.3:a:openssl:openssl:1.0.2zi
  • Openssl » Openssl » Version: 1.0.2zj
    cpe:2.3:a:openssl:openssl:1.0.2zj
  • Openssl » Openssl » Version: 1.0.2zn
    cpe:2.3:a:openssl:openssl:1.0.2zn
  • Openssl » Openssl » Version: 1.1.1
    cpe:2.3:a:openssl:openssl:1.1.1
  • Openssl » Openssl » Version: 1.1.1a
    cpe:2.3:a:openssl:openssl:1.1.1a
  • Openssl » Openssl » Version: 1.1.1b
    cpe:2.3:a:openssl:openssl:1.1.1b
  • Openssl » Openssl » Version: 1.1.1c
    cpe:2.3:a:openssl:openssl:1.1.1c
  • Openssl » Openssl » Version: 1.1.1d
    cpe:2.3:a:openssl:openssl:1.1.1d
  • Openssl » Openssl » Version: 1.1.1e
    cpe:2.3:a:openssl:openssl:1.1.1e
  • Openssl » Openssl » Version: 1.1.1f
    cpe:2.3:a:openssl:openssl:1.1.1f
  • Openssl » Openssl » Version: 1.1.1g
    cpe:2.3:a:openssl:openssl:1.1.1g
  • Openssl » Openssl » Version: 1.1.1h
    cpe:2.3:a:openssl:openssl:1.1.1h
  • Openssl » Openssl » Version: 1.1.1i
    cpe:2.3:a:openssl:openssl:1.1.1i
  • Openssl » Openssl » Version: 1.1.1j
    cpe:2.3:a:openssl:openssl:1.1.1j
  • Openssl » Openssl » Version: 1.1.1k
    cpe:2.3:a:openssl:openssl:1.1.1k
  • Openssl » Openssl » Version: 1.1.1l
    cpe:2.3:a:openssl:openssl:1.1.1l
  • Openssl » Openssl » Version: 1.1.1m
    cpe:2.3:a:openssl:openssl:1.1.1m
  • Openssl » Openssl » Version: 1.1.1n
    cpe:2.3:a:openssl:openssl:1.1.1n
  • Openssl » Openssl » Version: 1.1.1o
    cpe:2.3:a:openssl:openssl:1.1.1o
  • Openssl » Openssl » Version: 1.1.1p
    cpe:2.3:a:openssl:openssl:1.1.1p
  • Openssl » Openssl » Version: 1.1.1q
    cpe:2.3:a:openssl:openssl:1.1.1q
  • Openssl » Openssl » Version: 1.1.1r
    cpe:2.3:a:openssl:openssl:1.1.1r
  • Openssl » Openssl » Version: 1.1.1s
    cpe:2.3:a:openssl:openssl:1.1.1s
  • Openssl » Openssl » Version: 1.1.1t
    cpe:2.3:a:openssl:openssl:1.1.1t
  • Openssl » Openssl » Version: 1.1.1u
    cpe:2.3:a:openssl:openssl:1.1.1u
  • Openssl » Openssl » Version: 1.1.1v
    cpe:2.3:a:openssl:openssl:1.1.1v
  • Openssl » Openssl » Version: 1.1.1w
    cpe:2.3:a:openssl:openssl:1.1.1w
  • Openssl » Openssl » Version: 1.1.1x
    cpe:2.3:a:openssl:openssl:1.1.1x
  • Openssl » Openssl » Version: 1.1.1ze
    cpe:2.3:a:openssl:openssl:1.1.1ze
  • Openssl » Openssl » Version: 3.0.0
    cpe:2.3:a:openssl:openssl:3.0.0
  • Openssl » Openssl » Version: 3.0.1
    cpe:2.3:a:openssl:openssl:3.0.1
  • Openssl » Openssl » Version: 3.0.10
    cpe:2.3:a:openssl:openssl:3.0.10
  • Openssl » Openssl » Version: 3.0.11
    cpe:2.3:a:openssl:openssl:3.0.11
  • Openssl » Openssl » Version: 3.0.12
    cpe:2.3:a:openssl:openssl:3.0.12
  • Openssl » Openssl » Version: 3.0.13
    cpe:2.3:a:openssl:openssl:3.0.13
  • Openssl » Openssl » Version: 3.0.14
    cpe:2.3:a:openssl:openssl:3.0.14
  • Openssl » Openssl » Version: 3.0.15
    cpe:2.3:a:openssl:openssl:3.0.15
  • Openssl » Openssl » Version: 3.0.19
    cpe:2.3:a:openssl:openssl:3.0.19
  • Openssl » Openssl » Version: 3.0.2
    cpe:2.3:a:openssl:openssl:3.0.2
  • Openssl » Openssl » Version: 3.0.3
    cpe:2.3:a:openssl:openssl:3.0.3
  • Openssl » Openssl » Version: 3.0.4
    cpe:2.3:a:openssl:openssl:3.0.4
  • Openssl » Openssl » Version: 3.0.5
    cpe:2.3:a:openssl:openssl:3.0.5
  • Openssl » Openssl » Version: 3.0.6
    cpe:2.3:a:openssl:openssl:3.0.6
  • Openssl » Openssl » Version: 3.0.7
    cpe:2.3:a:openssl:openssl:3.0.7
  • Openssl » Openssl » Version: 3.0.8
    cpe:2.3:a:openssl:openssl:3.0.8
  • Openssl » Openssl » Version: 3.0.9
    cpe:2.3:a:openssl:openssl:3.0.9
  • Openssl » Openssl » Version: 3.3.0
    cpe:2.3:a:openssl:openssl:3.3.0
  • Openssl » Openssl » Version: 3.3.1
    cpe:2.3:a:openssl:openssl:3.3.1
  • Openssl » Openssl » Version: 3.3.2
    cpe:2.3:a:openssl:openssl:3.3.2
  • Openssl » Openssl » Version: 3.3.3
    cpe:2.3:a:openssl:openssl:3.3.3
  • Openssl » Openssl » Version: 3.3.4
    cpe:2.3:a:openssl:openssl:3.3.4
  • Openssl » Openssl » Version: 3.3.5
    cpe:2.3:a:openssl:openssl:3.3.5
  • Openssl » Openssl » Version: 3.3.6
    cpe:2.3:a:openssl:openssl:3.3.6
  • Openssl » Openssl » Version: 3.4.0
    cpe:2.3:a:openssl:openssl:3.4.0
  • Openssl » Openssl » Version: 3.4.1
    cpe:2.3:a:openssl:openssl:3.4.1
  • Openssl » Openssl » Version: 3.4.2
    cpe:2.3:a:openssl:openssl:3.4.2
  • Openssl » Openssl » Version: 3.4.3
    cpe:2.3:a:openssl:openssl:3.4.3
  • Openssl » Openssl » Version: 3.4.4
    cpe:2.3:a:openssl:openssl:3.4.4
  • Openssl » Openssl » Version: 3.5.0
    cpe:2.3:a:openssl:openssl:3.5.0
  • Openssl » Openssl » Version: 3.5.1
    cpe:2.3:a:openssl:openssl:3.5.1
  • Openssl » Openssl » Version: 3.5.2
    cpe:2.3:a:openssl:openssl:3.5.2
  • Openssl » Openssl » Version: 3.5.3
    cpe:2.3:a:openssl:openssl:3.5.3
  • Openssl » Openssl » Version: 3.5.4
    cpe:2.3:a:openssl:openssl:3.5.4
  • Openssl » Openssl » Version: 3.5.5
    cpe:2.3:a:openssl:openssl:3.5.5
  • Openssl » Openssl » Version: 3.6.0
    cpe:2.3:a:openssl:openssl:3.6.0
  • Openssl » Openssl » Version: 3.6.1
    cpe:2.3:a:openssl:openssl:3.6.1


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