CVE-2021-33586 is a medium-severity vulnerability affecting InspIRCd versions 3.8.0 through 3.9.x before 3.10.0, allowing any connected user to access recently deallocated memory through a malformed PONG message. With a CVSS score of 4.3, this low-complexity network attack requires low privileges and results in a low impact on confidentiality, with no impact on integrity or availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.8.0, < 3.10.0CPE matchmatch criteria | cpe:2.3:a:inspircd:inspircd:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.