How severe is CVE-2018-18088?

CVE-2018-18088 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-2018-18088 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18088?

CVE-2018-18088 primarily affects Uclouvain Openjpeg. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-18088?

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

When was CVE-2018-18088 published?

CVE-2018-18088 was published on 2018-10-09 and last updated on 2026-06-17.

CVE-2018-18088

CVE-2018-18088 is a medium-severity vulnerability in Uclouvain Openjpeg 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: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Uclouvain Openjpeg
Published: 2018-10-09
Last modified: 2026-06-17

Description

OpenJPEG 2.3.0 has a NULL pointer dereference for "red" in the imagetopnm function of jp2/convert.c

Frequently asked questions

What is CVE-2018-18088?: OpenJPEG 2.3.0 has a NULL pointer dereference for "red" in the imagetopnm function of jp2/convert.c
How severe is CVE-2018-18088?: CVE-2018-18088 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-2018-18088 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18088?: CVE-2018-18088 primarily affects Uclouvain Openjpeg. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-18088?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-18088 published?: CVE-2018-18088 was published on 2018-10-09 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:uclouvain:openjpeg:2.3.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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CVE-2018-7648 — Critical (CVSS 9.8): An issue was discovered in mj2/opj_mj2_extract.c in OpenJPEG 2.3.0. The output prefix was not checked for length, which…
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