CVE-2026-7383

CVE-2026-7383

Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap buffer overflow. Impact summary: A heap buffer overflow may lead to a crash or possibly attacker co…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-7383?
CVE-2026-7383 is a high-severity vulnerability, classified under Out-of-bounds Write. CVSS score: 8.1/10. Published 2026-06-09.
How severe is CVE-2026-7383?
High severity. CVSS v3 base score is 8.1 out of 10.