What is CVE-2019-12111?

CVE-2019-12111 is a high-severity vulnerability in Miniupnp Project Miniupnpd, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2019-05-15.

How severe is CVE-2019-12111?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Miniupnp Project Miniupnpd

CVE-2019-12111

A Denial Of Service vulnerability in MiniUPnP MiniUPnPd through 2.1 exists due to a NULL pointer dereference in copyIPv6IfDifferent in pcpserver.c.

Published 2019-05-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.034 (88.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000

Affected products

Miniupnp Project Miniupnpd
Debian Linux — versions 8.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

www.vdoo.com/blog/security-issues-discovered-in-miniupnp (Exploit, Patch, Third Party Advisory)
github.com/miniupnp/miniupnp/commit/cb8a02af7a5677cf608e86d57ab04241cf34e24f (Patch)
lists.debian.org/debian-lts-announce/2019/05/msg00045.html (mailing-list, Mailing List, Third Party Advisory)
usn.ubuntu.com/4542-1/ (vendor-advisory)

Frequently asked questions

What is CVE-2019-12111?: CVE-2019-12111 is a high-severity vulnerability in Miniupnp Project Miniupnpd, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2019-05-15.
How severe is CVE-2019-12111?: High severity. CVSS v3 base score is 7.5 out of 10.