What’s Vulnerable › Vulnerabilities
CVE-2021-26529
- Severity: critical (CVSS 9.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2021-02-08 · updated 2026-06-17
- Weakness: CWE-787
Description
The mg_tls_init function in Cesanta Mongoose HTTPS server 7.0 and 6.7-6.18 (compiled with mbedTLS support) is vulnerable to remote OOB write attack via connection request after exhausting memory pool.
Affected products
- Cesanta Mongoose: from 6.7 through 6.18; 7.0
References
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