What is CVE-2020-23930?

CVE-2020-23930 is a medium-severity vulnerability in Gpac, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2021-04-21.

How severe is CVE-2020-23930?

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

Is CVE-2020-23930 known to be exploited?

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

NULL pointer dereference in Gpac

CVE-2020-23930

An issue was discovered in gpac through 20200801. A NULL pointer dereference exists in the function nhmldump_send_header located in write_nhml.c. It allows an attacker to cause Denial of Service.

Published 2021-04-21 · 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: 0.007 (52.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Gpac

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

References

github.com/gpac/gpac/issues/1565 (Third Party Advisory)
github.com/gpac/gpac/commit/9eeac00b38348c664dfeae2525bba0cf1bc32349 (Third Party Advisory)

Frequently asked questions

What is CVE-2020-23930?: CVE-2020-23930 is a medium-severity vulnerability in Gpac, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2021-04-21.
How severe is CVE-2020-23930?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2020-23930 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.