What is CVE-2021-33586?

CVE-2021-33586 is a medium-severity vulnerability in Inspircd, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.3/10. Published 2021-05-27.

How severe is CVE-2021-33586?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Inspircd

CVE-2021-33586

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.

EPSS: 0.009 (55.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Inspircd
N/a — versions n/a

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2021-33586?: CVE-2021-33586 is a medium-severity vulnerability in Inspircd, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.3/10. Published 2021-05-27.
How severe is CVE-2021-33586?: Medium severity. CVSS v3 base score is 4.3 out of 10.