CVE-2018-16646

MEDIUMNVD 6.56.5—Trending — 4 sources updated this week

6.5

In Poppler 0.68.0, the Parser::getObj() function in Parser.cc may cause infinite recursion via a crafted file. A remote attacker can leverage this for a DoS attack.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 84.2%
KEV: Not listed

Published

September 6, 2018

Last Modified

November 21, 2024

References (16)

cve@mitrehttps://access.redhat.com/errata/RHSA-2019:2022
cve@mitrehttps://bugzilla.redhat.com/show_bug.cgi?id=1622951
cve@mitrehttps://lists.debian.org/debian-lts-announce/2018/10/msg00024.html
cve@mitrehttps://lists.debian.org/debian-lts-announce/2018/11/msg00040.html
cve@mitrehttps://lists.debian.org/debian-lts-announce/2018/12/msg00004.html
cve@mitrehttps://lists.debian.org/debian-lts-announce/2020/07/msg00018.html
cve@mitrehttps://usn.ubuntu.com/3837-1/
cve@mitrehttps://usn.ubuntu.com/3837-2/
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:2022
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1622951
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/10/msg00024.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/11/msg00040.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/12/msg00004.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/07/msg00018.html
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3837-1/

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	poppler-utils (0.41.0-0ubuntu1.10) @ xenial	2026-05-28	ubuntu
ubuntu	poppler-utils (0.68.0-0ubuntu1.2) @ cosmic	2026-05-28	ubuntu
redhat	poppler-0:0.26.5-38.el7	2019-08-06	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

CWE-835Loop with Unreachable Exit Condition (Infinite Loop)

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 19× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 03:27 UTCEG score recompute
2026-05-28 03:27 UTCVendor advisory
2026-05-28 03:26 UTCGHSA enrichment
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

Frequently asked(5)

What is CVE-2018-16646?

CVE-2018-16646 is a medium vulnerability published on September 6, 2018. In Poppler 0.68.0, the Parser::getObj() function in Parser.cc may cause infinite recursion via a crafted file. A remote attacker can leverage this for a DoS attack.

When was CVE-2018-16646 disclosed?

CVE-2018-16646 was first published in the National Vulnerability Database on September 6, 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-2018-16646 actively exploited?

CVE-2018-16646 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-16646?

CVE-2018-16646 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2018-16646?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-16646, 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

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CVE-2018-16646

Published

Last Modified

References (16)

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-16646?

Same vendor

Same CWE

CVE-2018-16646

📅 Published

🔄 Last Modified

🔗 References (16)

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-16646?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

References (16)

Frequently asked(5)

Related CVEs(same vendor + same CWE)