Buffer Overflow Affecting sahlberg/libsmb2 package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-SAHLBERGLIBSMB2-13181808
- published2 Oct 2025
- disclosed25 Sept 2025
- creditZjW1nd
Introduced: 25 Sep 2025
NewCVE-2025-57632 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Buffer Overflow via the smb2_add_iovector() function. An attacker can cause memory corruption, application crashes, or potentially execute arbitrary code by sending specially crafted SMB2 responses with many chained PDUs that overflow the fixed-size iovec array.