CVE-2018-20845: n/a vulnerability

CVE-2018-20845: Division-by-zero vulnerabilities in the functions pi_next_pcrl, pi_next_cprl, and pi_next_rpcl in openmj2/p...

Division-by-zero vulnerabilities in the functions pi_next_pcrl, pi_next_cprl, and pi_next_rpcl in openmj2/pi.c in OpenJPEG through 2.3.0 allow remote attackers to cause a denial of service (application crash).

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 12:12 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2018-20845 is a crash bug in OpenJPEG, a JPEG 2000 processing library. If an exposed application processes attacker-supplied images with affected OpenJPEG versions, a crafted file could cause denial of service. The source bundle does not show code execution, data theft, CVSS, or active exploitation. Exposure is most likely in services, desktop tools, media pipelines, or embedded products that use OpenJPEG through 2.3.0 to parse JPEG 2000 content from untrusted sources. The provided affected-product metadata is incomplete. Treat as a service-availability risk, not a confirmed breach vector. Prioritize externally reachable image-processing paths and high-availability business services. Urgency increases where attackers can submit files without authentication. Mitigation focus: Inventory systems and dependencies using OpenJPEG or bundled OpenJPEG code.; Prioritize components that process user-supplied JPEG 2000 or J2K files.; Check OpenJPEG and OS vendor guidance for the fixed release or backported patch..

Prepared: Jun 6, 2026, 20:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 26, 2019, 17:07 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/uclouvain/openjpeg/pull/1168/commits/c5bd64ea146162967c29bd2af0cbb845ba3eaaafCVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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