What is CVE-2016-9018?

CVE-2016-9018 is a medium-severity vulnerability in Realnetworks Realplayer, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2016-10-28.

How severe is CVE-2016-9018?

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

NULL pointer dereference in Realnetworks Realplayer

CVE-2016-9018

Improper handling of a repeating VRAT chunk in qcpfformat.dll allows attackers to cause a Null pointer dereference and crash in RealNetworks RealPlayer 18.1.5.705 through a crafted .QCP media file.

Published 2016-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.081 (94.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.081 · newest: 0.081 · change: 0.000

Affected products

Realnetworks Realplayer — versions 18.1.5.705

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

www.exploit-db.com/exploits/40617/ (Exploit, Third Party Advisory, exploit)
www.securityfocus.com/bid/94239 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2016-9018?: CVE-2016-9018 is a medium-severity vulnerability in Realnetworks Realplayer, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2016-10-28.
How severe is CVE-2016-9018?: Medium severity. CVSS v3 base score is 5.5 out of 10.