CVE-2021-26530

The mg_tls_init function in Cesanta Mongoose HTTPS server 7.0 (compiled with OpenSSL support) is vulnerable to remote OOB write attack via connection request after exhausting memory pool.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 71.8%
Affected Products (NVD)
VendorProductVersion
cesantamongoose
7.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mongoose
forky
7.22+ds-1
fixed
sid
7.22+ds-1
fixed
swupdate
bookworm
2022.12+dfsg-4+deb12u2
fixed
bullseye
postponed
forky
2026.05.1+dfsg-1
fixed
sid
2026.05.1+dfsg-1
fixed
trixie
2024.12.1+dfsg-3+deb13u2
fixed
Common Weakness Enumeration
References
https://github.com/cesanta/mongoose/issues/1204
https://github.com/cesanta/mongoose/issues/1204