CVE-2026-6678

Integer underflow in wc_PKCS7_DecryptOri handling crafted Other Recipient Info

Published Jun 25, 2026 CVSS 4.0 · 1 Low EPSS < 1% KEV · Not listed
Description
Integer underflow in wc_PKCS7_DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4683-1 wolfssl security update
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Wolfssl
Wolfssl wolfssl
Vendors & Products Wolfssl
Wolfssl wolfssl
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
wolfSSL
Published
Updated
Jul 1, 2026, 4:47 PM
Reserved
Apr 20, 2026, 2:57 PM
Status
Modified
Published
Jun 25, 2026, 9:16 PM
Modified
Jul 1, 2026, 5:16 PM