CVE-2026-3229
Integer Overflow in Certificate Chain Allocation
- State
- Published
- Severity
- 1.2 Low
- Published
- Mar 19, 2026
- Updated
- Mar 20, 2026
- Reserved
- Feb 25, 2026
Description
An integer overflow vulnerability existed in the static function wolfssl_add_to_chain, that caused heap corruption when certificate data was written out of bounds of an insufficiently sized certificate buffer. wolfssl_add_to_chain is called by these API: wolfSSL_CTX_add_extra_chain_cert, wolfSSL_CTX_add1_chain_cert, wolfSSL_add0_chain_cert. These API are enabled for 3rd party compatibility features: enable-opensslall, enable-opensslextra, enable-lighty, enable-stunnel, enable-nginx, enable-haproxy. This issue is not remotely exploitable, and would require that the application context loading certificates is compromised.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 1.2 Low | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Green | wolfSSL |
Weaknesses
- CWE-122 Heap-based buffer overflow
Affected Products
| Product | Versions |
|---|---|
wolfSSLwofSSL |
|
References
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