Out-of-bounds Write Affecting wolfSSL/wolfssh package, versions [,1.4.21)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-WOLFSSLWOLFSSH-13653477
- published22 Oct 2025
- disclosed21 Oct 2025
- creditUnknown
Introduced: 21 Oct 2025
CVE-2025-11624 (opens in a new tab)How to fix?
Upgrade wolfSSL/wolfssh to version 1.4.21 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write via the file handles on the SFTP server when receiving a specially crafted packet with a handle size larger than the system handle or file descriptor size, but smaller than the maximum allowed handle size. An attacker can cause memory corruption or potentially execute arbitrary code by sending such a malicious packet.