What is CVE-2026-0930?

CVE-2026-0930 is a medium-severity vulnerability in Wolfssh, classified under Buffer Over-read. CVSS score: 4.3/10. Published 2026-04-20.

How severe is CVE-2026-0930?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Out-of-bounds Read in Wolfssh

CVE-2026-0930

Potential read out of bounds case with wolfSSHd on Windows while handling a terminal resize request. An authenticated user could trigger the out of bounds read after establishing a connection which would leak the adjacent stack memory to t…

EPSS: 0.002 (6.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Wolfssh
Wolfssl Wolfssh — versions 1.4.15

Weakness classification (CWE)

CWE-126 — Buffer Over-read
CWE-125 — Out-of-bounds Read

References

facts@wolfssl.com (Issue Tracking)

Frequently asked questions

What is CVE-2026-0930?: CVE-2026-0930 is a medium-severity vulnerability in Wolfssh, classified under Buffer Over-read. CVSS score: 4.3/10. Published 2026-04-20.
How severe is CVE-2026-0930?: Medium severity. CVSS v3 base score is 4.3 out of 10.