← Vulnerability feed

Vulnerability record · CVE-2026-0930 · published 20 April 2026

CVE-2026-0930: Wolfssh out-of-bounds read vulnerability

WWolfssh · Wolfssh

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 the pseudo-console output.

2.3 CVSS 4.0 Low EPSS 0.17% · top 94.1% CWE-126 · CWE-126CWE-125 · Out-of-bounds read
2.3CVSS 4.0 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

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 the pseudo-console output.

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/wolfssl/wolfssh/pull/846 Issue Tracking

Track CVE-2026-0930 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-32073Wolfssh integer overflow vulnerabilityWolfSSH v1.4.7 was discovered to contain an integer overflow via the function wolfSSH_SFTP_RecvRMDIR.EPSS 1.9%9.4CVE-2025-14942Wolfssh improper authentication vulnerabilitywolfSSH’s key exchange state machine can be manipulated to leak the client’s password in the clear, trick the client to send a bogus signature, or tr…EPSS 0.40%9.4CVE-2025-11625Wolfssh improper authentication vulnerabilityImproper host authentication vulnerability in wolfSSH version 1.4.20 and earlier clients that allows authentication bypass and leaking of clients cre…EPSS 0.43%9.1CVE-2024-2873Wolfssh improper authentication vulnerabilityA vulnerability was found in wolfSSH's server-side state machine before versions 1.4.17. A malicious client could create channels without first perfo…EPSS 0.62%5.1CVE-2025-15382Wolfssh out-of-bounds read vulnerabilityA heap buffer over-read vulnerability exists in the wolfSSH_CleanPath() function in wolfSSH. An authenticated remote attacker can trigger the issue v…EPSS 0.34%1.8CVE-2025-11624Wolfssh out-of-bounds write vulnerabilityPotential stack buffer overwrite on the SFTP server side when receiving a malicious packet that has a handle size larger than the system handle or fi…EPSS 0.37%

Source: NIST National Vulnerability Database (record CVE-2026-0930), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.