What is CVE-2021-32284?

CVE-2021-32284 is a high-severity vulnerability in Creolabs Gravity, classified under NULL Pointer Dereference. CVSS score: 7.8/10. Published 2021-09-20.

How severe is CVE-2021-32284?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-32284 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Creolabs Gravity

CVE-2021-32284

An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function ircode_register_pop_context_protect() located in gravity_ircode.c. It allows an attacker to cause Denial of Service.

Published 2021-09-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (53.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Creolabs Gravity

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

seviezhou/Kraken

References

github.com/marcobambini/gravity/issues/321 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-32284?: CVE-2021-32284 is a high-severity vulnerability in Creolabs Gravity, classified under NULL Pointer Dereference. CVSS score: 7.8/10. Published 2021-09-20.
How severe is CVE-2021-32284?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-32284 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.