What is CVE-2017-9124?

CVE-2017-9124 is a medium-severity vulnerability in Libquicktime, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2017-06-12.

How severe is CVE-2017-9124?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Libquicktime

CVE-2017-9124

The quicktime_match_32 function in util.c in libquicktime 1.2.4 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted mp4 file.

Published 2017-06-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.038 (89.7th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.038 · newest: 0.038 · change: 0.000

Affected products

Libquicktime — versions 1.2.4

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

www.exploit-db.com/exploits/42148/ (VDB Entry, Third Party Advisory, exploit)
usn.ubuntu.com/4545-1/ (vendor-advisory)

Frequently asked questions

What is CVE-2017-9124?: CVE-2017-9124 is a medium-severity vulnerability in Libquicktime, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2017-06-12.
How severe is CVE-2017-9124?: Medium severity. CVSS v3 base score is 6.5 out of 10.