Integer underflow in wc_PKCS7_DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption.

Metrics

Attack Vector Local

Attack Complexity High

Privileges Required Low

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

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Vendors Products
References
Link Providers
https://github.com/wolfSSL/wolfssl/pull/10203 cve-icon
https://www.wolfssl.com/docs/security-vulnerabilities/ cve-icon
History

Thu, 25 Jun 2026 21:00:00 +0000

Type Values Removed Values Added
Description Integer underflow in wc_PKCS7_DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption.
Title Integer underflow in wc_PKCS7_DecryptOri handling crafted Other Recipient Info
Weaknesses CWE-191
References
Metrics cvssV4_0

{'score': 1, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Clear'}
cve-icon MITRE

Status: PUBLISHED

Assigner: wolfSSL

Published:

Updated: 2026-06-25T20:16:08.416Z

Reserved: 2026-04-20T14:57:53.610Z

Link: CVE-2026-6678

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-25T22:45:04Z