CVE-2016-5297

CRITICALNVD 9.89.8—Trending — 4 sources updated this week

9.8

An error in argument length checking in JavaScript, leading to potential integer overflows or other bounds checking issues. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 83.2%
KEV: Not listed

Published

June 11, 2018

Last Modified

November 25, 2025

Advisory Details (9)

Auto-updated May 31, 2026

No patch confirmed yet.

generic

http://rhn.redhat.com/errata/RHSA-2016-2780.html

generic

Security vulnerabilities fixed in Thunderbird 45.5 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2016-93/

generic

Security vulnerabilities fixed in Firefox ESR 45.5 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2016-90/

generic

Security vulnerabilities fixed in Firefox 50 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2016-89/

generic

[SECURITY] [DSA 3730-1] icedove security update

https://www.debian.org/security/2016/dsa-3730

generic

Mozilla Firefox, Thunderbird: Multiple vulnerabilities (GLSA 201701-15) — Gentoo security

https://security.gentoo.org/glsa/201701-15

generic

1303678 - (CVE-2016-5297) Assertion failure: args.length() <= ARGS_LENGTH_MAX

https://bugzilla.mozilla.org/show_bug.cgi?id=1303678

generic

http://www.securitytracker.com/id/1037298

generic

http://www.securityfocus.com/bid/94336

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	thunderbird (1:45.5.1+build1-0ubuntu0.16.10.1) @ yakkety	2026-05-28	ubuntu
ubuntu	firefox (50.0+build2-0ubuntu0.16.10.2) @ yakkety	2026-05-28	ubuntu
redhat	firefox-0:45.5.0-1.el7_3	2016-11-16	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-190Integer Overflow or Wraparound

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 12× in last 7d / 18× 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 20:10 UTCepss_batch
2026-06-01 13:49 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
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 07:00 UTCEG score recompute
2026-05-28 07:00 UTCVendor advisory
2026-05-28 07:00 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 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch
2026-05-23 04:48 UTCOSV refresh

Frequently asked(5)

What is CVE-2016-5297?

CVE-2016-5297 is a critical vulnerability published on June 11, 2018. An error in argument length checking in JavaScript, leading to potential integer overflows or other bounds checking issues. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

When was CVE-2016-5297 disclosed?

CVE-2016-5297 was first published in the National Vulnerability Database on June 11, 2018, with the most recent update on November 25, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2016-5297 actively exploited?

CVE-2016-5297 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2016-5297?

CVE-2016-5297 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2016-5297?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-5297, 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-2016-5297

Published

Last Modified

Advisory Details (9)

Security vulnerabilities fixed in Thunderbird 45.5 — Mozilla

Security vulnerabilities fixed in Firefox ESR 45.5 — Mozilla

Security vulnerabilities fixed in Firefox 50 — Mozilla

[SECURITY] [DSA 3730-1] icedove security update

Mozilla Firefox, Thunderbird: Multiple vulnerabilities (GLSA 201701-15) — Gentoo security

1303678 - (CVE-2016-5297) Assertion failure: args.length() <= ARGS_LENGTH_MAX

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2016-5297?

Same vendor

Same CWE

CVE-2016-5297

📅 Published

🔄 Last Modified

📋 Advisory Details (9)

Security vulnerabilities fixed in Thunderbird 45.5 — Mozilla

Security vulnerabilities fixed in Firefox ESR 45.5 — Mozilla

Security vulnerabilities fixed in Firefox 50 — Mozilla

[SECURITY] [DSA 3730-1] icedove security update

Mozilla Firefox, Thunderbird: Multiple vulnerabilities (GLSA 201701-15) — Gentoo security

1303678 - (CVE-2016-5297) Assertion failure: args.length() <= ARGS_LENGTH_MAX

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2016-5297?

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Advisory Details (9)

Frequently asked(5)

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