Medium severity4.3NVD Advisory· Published May 27, 2021· Updated Jun 17, 2026
CVE-2021-33586
CVE-2021-33586
Description
InspIRCd 3.8.0 through 3.9.x before 3.10.0 allows any user (able to connect to the server) to access recently deallocated memory, aka the "malformed PONG" issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7- InspIRCd/InspIRCddescription
- osv-coords4 versionspkg:deb/ubuntu/[email protected]?arch=source&distro=esm-apps/xenialpkg:deb/ubuntu/[email protected]?arch=source&distro=esm-apps/bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=jammypkg:deb/ubuntu/[email protected]?arch=source&distro=focal
>= 0+ 3 more
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
Patches
Vulnerability mechanics
References
3- docs.inspircd.org/security/2021-01/nvdPatchVendor Advisory
- github.com/inspircd/inspircd/commit/4350a11c663b0d75f8119743bffb7736d87abd4dnvdPatchThird Party Advisory
- security.gentoo.org/glsa/202107-22nvdThird Party Advisory
News mentions
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