What is CVE-2018-20363?

CVE-2018-20363 is a medium-severity vulnerability in Libraw, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-12-22.

How severe is CVE-2018-20363?

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

NULL pointer dereference in Libraw

CVE-2018-20363

LibRaw::raw2image in libraw_cxx.cpp in LibRaw 0.19.1 has a NULL pointer dereference.

Published 2018-12-22 · 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: 0.028 (86.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000

Affected products

Libraw

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

www.securityfocus.com/bid/106299 (VDB Entry, Third Party Advisory, vdb-entry)
github.com/LibRaw/LibRaw/issues/193 (Exploit, Patch, Third Party Advisory)
usn.ubuntu.com/3989-1/ (vendor-advisory)

Frequently asked questions

What is CVE-2018-20363?: CVE-2018-20363 is a medium-severity vulnerability in Libraw, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-12-22.
How severe is CVE-2018-20363?: Medium severity. CVSS v3 base score is 6.5 out of 10.