CVE-2017-5416

HIGHNVD 7.57.5—Trending — 4 sources updated this week

7.5

In certain circumstances a networking event listener can be prematurely released. This appears to result in a null dereference in practice. This vulnerability affects Firefox < 52 and Thunderbird < 52.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 75.3%
KEV: Not listed

Published

June 11, 2018

Last Modified

November 21, 2024

References (10)

security@mozillahttp://www.securityfocus.com/bid/96692
security@mozillahttp://www.securitytracker.com/id/1037966
security@mozillahttps://bugzilla.mozilla.org/show_bug.cgi?id=1328121
security@mozillahttps://www.mozilla.org/security/advisories/mfsa2017-05/
security@mozillahttps://www.mozilla.org/security/advisories/mfsa2017-09/
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/96692
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1037966
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1328121
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2017-05/
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2017-09/

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	firefox (52.0+build2-0ubuntu0.16.10.1) @ yakkety	2026-05-28	ubuntu

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-476NULL Pointer Dereference

All Vendor Advisories

(1)

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.

UbuntuUSN-3216-1MEDIUM
Firefox vulnerabilities

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 22:28 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 06:56 UTCEG score recompute
2026-05-28 06:56 UTCVendor advisory
2026-05-28 06:56 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-2017-5416?

CVE-2017-5416 is a high vulnerability published on June 11, 2018. In certain circumstances a networking event listener can be prematurely released. This appears to result in a null dereference in practice. This vulnerability affects Firefox < 52 and Thunderbird < 52.

When was CVE-2017-5416 disclosed?

CVE-2017-5416 was first published in the National Vulnerability Database on June 11, 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-2017-5416 actively exploited?

CVE-2017-5416 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2017-5416?

CVE-2017-5416 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2017-5416?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-5416, 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-2017-5416

Published

Last Modified

References (10)

Patch Availability(1)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2017-5416?

Same vendor

Same CWE

CVE-2017-5416

📅 Published

🔄 Last Modified

🔗 References (10)

Patch Availability(1)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2017-5416?

🔗 Related CVEs(same vendor + same CWE)

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References (10)

Frequently asked(5)

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