CVE-2018-20098

MEDIUMNVD 6.5

6.5

There is a heap-based buffer over-read in Exiv2::Jp2Image::encodeJp2Header of jp2image.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.

CVSS v3: 6.5
EG Score: —
EPSS: 77.5%
KEV: Not listed

Published

December 12, 2018

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://access.redhat.com/errata/RHSA-2019:2101
cve@mitrehttps://github.com/Exiv2/exiv2/issues/590
cve@mitrehttps://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:2101
af854a3a-2127-422b-91ae-364da2661108https://github.com/Exiv2/exiv2/issues/590
af854a3a-2127-422b-91ae-364da2661108https://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
exiv2	0.1 ... 0.17.5 (28 versions)	—	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-125Out-of-bounds Read

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-23 05:48 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-20098?

CVE-2018-20098 is a medium vulnerability published on December 12, 2018. There is a heap-based buffer over-read in Exiv2::Jp2Image::encodeJp2Header of jp2image.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.

When was CVE-2018-20098 disclosed?

CVE-2018-20098 was first published in the National Vulnerability Database on December 12, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-20098 actively exploited?

CVE-2018-20098 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 77.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-20098?

CVE-2018-20098 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2018-20098?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-20098, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-20098

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