Integer Underflow (Wrap or Wraparound) Affecting espressif/esp-idf package, versions [,5.1.7)[5.2.1,6.0-beta2)
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-ESPRESSIFESPIDF-15220719
- published5 Feb 2026
- disclosed4 Feb 2026
- creditPavel Kohout
Introduced: 4 Feb 2026
CVE-2026-25532 (opens in a new tab)How to fix?
Upgrade espressif/esp-idf to version 5.1.7, 6.0-beta2 or higher.
Overview
Affected versions of this package are vulnerable to Integer Underflow (Wrap or Wraparound) during the fragment length calculation in the WPS Enrollee. An attacker can cause memory corruption or denial of service by sending specially crafted EAP-WSC packets with truncated payloads that trigger an integer underflow.