# wolfSSL vulnerabilities & exploitation

> As of 2026-10-05, Threadlinqs tracks 9 wolfSSL CVEs, 0 in the CISA Known Exploited Vulnerabilities catalog, linked to 2 tracked threat campaigns.

**Data as of:** 2026-10-05

## Exploitation timeline

Threadlinqs has recorded 9 wolfSSL CVEs published between 2026-06-15 and 2026-06-15. The busiest month was 2026-06 (9 new CVEs). None of them is listed in CISA KEV yet.

## Most exploited vulnerabilities

Ranked with CISA KEV listings first, then EPSS exploit probability, then CVSS score. Showing 9 of 9 tracked wolfSSL CVEs.

- [CVE-2026-6329](https://intel.threadlinqs.com/cve/CVE-2026-6329) — MEDIUM 6.5 · EPSS 0.2% · 2026-06-25
- [CVE-2026-55962](https://intel.threadlinqs.com/cve/CVE-2026-55962) — MEDIUM 6.5 · EPSS 0.2% · 2026-06-25
- [CVE-2026-6330](https://intel.threadlinqs.com/cve/CVE-2026-6330) — MEDIUM 6.5 · EPSS 0.2% · 2026-06-25
- [CVE-2026-6092](https://intel.threadlinqs.com/cve/CVE-2026-6092) — MEDIUM 5.3 · EPSS 0.1% · 2026-06-25
- [CVE-2026-6325](https://intel.threadlinqs.com/cve/CVE-2026-6325) — HIGH 7.5 · EPSS 0.1% · 2026-06-25
- [CVE-2026-7511](https://intel.threadlinqs.com/cve/CVE-2026-7511) — HIGH 7.5 · EPSS 0.1% · 2026-06-25
- [CVE-2026-6331](https://intel.threadlinqs.com/cve/CVE-2026-6331) — LOW 2.1 · EPSS 0.1% · 2026-06-25
- [CVE-2026-8720](https://intel.threadlinqs.com/cve/CVE-2026-8720) — HIGH 7.5 · EPSS 0.1% · 2026-06-25
- [CVE-2026-7532](https://intel.threadlinqs.com/cve/CVE-2026-7532) — MEDIUM 5.7 · EPSS 0.1% · 2026-06-25

## Products affected

Threadlinqs normalises CPE and CNA product records across all 9 CVEs; 1 distinct wolfSSL product is affected. The most frequently affected:

- wolfSSL — 9 CVEs

## Threat activity

2 tracked threat campaigns reference wolfSSL products or exploit wolfSSL CVEs:

- [wolfSSL Improper Input Validation and Integer Underflow Vulnerabilities (CVE-2026-28739, CVE-2026-25106, CVE-2026-33091)](https://intel.threadlinqs.com/threat/TL-2026-1151) — UNKNOWN — 2026-07-09
- [Multiple WolfSSL Critical Vulnerabilities: Certificate Bypass, RCE, and Post-Quantum Weakening](https://intel.threadlinqs.com/threat/TL-2026-1008) — CRITICAL — 2026-06-30

## How to prioritise wolfSSL patching

This order follows the data Threadlinqs holds for wolfSSL, not a generic severity checklist:

- No wolfSSL CVE is in CISA KEV yet, so rank by exploit probability instead.
- Outside KEV, the highest EPSS scores are [CVE-2026-6329](https://intel.threadlinqs.com/cve/CVE-2026-6329) (0.2%), [CVE-2026-55962](https://intel.threadlinqs.com/cve/CVE-2026-55962) (0.2%), [CVE-2026-6330](https://intel.threadlinqs.com/cve/CVE-2026-6330) (0.2%).
- 0 CVEs score Critical and 3 High on CVSS v3 (maximum 7.5, average 6.1); sequence these after KEV and high-EPSS items.

## About this data

Vendor attribution comes from the CNA and CPE product records of each CVE, folded to one vendor name; CVSS, EPSS and KEV status are read from the Threadlinqs CVE catalog; campaign and actor links come from tracked threat records. Counts reflect the data as of 2026-10-05 and refresh daily.

Canonical: https://intel.threadlinqs.com/vendors/wolfssl
All vendors: https://intel.threadlinqs.com/vendors
Full detection coverage and IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp
