Out-of-bounds Write Affecting wolfssl package, versions <4.1.0+dfsg-1
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-ECHOLATEST-WOLFSSL-17979070
- published15 Jul 2026
- disclosed16 Jan 2019
Introduced: 16 Jan 2019
CVE-2019-6439 (opens in a new tab)How to fix?
Upgrade Echo:latest wolfssl to version 4.1.0+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wolfssl package and not the wolfssl package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
examples/benchmark/tls_bench.c in a benchmark tool in wolfSSL through 3.15.7 has a heap-based buffer overflow.