What is CVE-2021-32275?

CVE-2021-32275 is a medium-severity vulnerability in Grame Faust, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2021-09-20.

How severe is CVE-2021-32275?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-32275 known to be exploited?

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

NULL pointer dereference in Grame Faust

CVE-2021-32275

An issue was discovered in faust through v2.30.5. A NULL pointer dereference exists in the function CosPrim::computeSigOutput() located in cosprim.hh. 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 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (48.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Grame Faust

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

seviezhou/Kraken

References

github.com/grame-cncm/faust/issues/482 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-32275?: CVE-2021-32275 is a medium-severity vulnerability in Grame Faust, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2021-09-20.
How severe is CVE-2021-32275?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-32275 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.