How severe is CVE-2018-20363?

CVE-2018-20363 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-20363 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20363?

CVE-2018-20363 affects Libraw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20363?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-20363 published?

CVE-2018-20363 was published on 2018-12-22 and last updated on 2026-06-17.

CVE-2018-20363

CVE-2018-20363 is a medium-severity vulnerability in Libraw with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Libraw
Published: 2018-12-22
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2018-20363?: LibRaw::raw2image in libraw_cxx.cpp in LibRaw 0.19.1 has a NULL pointer dereference.
How severe is CVE-2018-20363?: CVE-2018-20363 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-20363 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20363?: CVE-2018-20363 affects Libraw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20363?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20363 published?: CVE-2018-20363 was published on 2018-12-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libraw:libraw:*:*:*:*:*:*:*:*

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