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TI-2017-03447 Aliases CVE-2017-5419GHSA-rg33-gjff-rggx

If a malicious site repeatedly triggers a modal authentication prompt, eventually the…

Priority LOW 37Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

If a malicious site repeatedly triggers a modal authentication prompt, eventually the browser UI will become non-responsive, requiring shutdown through the operating system. This is a denial of service (DOS) attack. This vulnerability affects Firefox < 52 and Thunderbird < 52.

Why it matters now

EPSS 0.0223 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Firefox (Mozilla): 52Thunderbird (Mozilla): 52

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 5252Patch availableCNA
MozillaThunderbirdbefore 5252Patch availableCNA
  • Firefox VendorMozilla Affected before 52 Fixed in 52 Patch available CNA
  • Thunderbird VendorMozilla Affected before 52 Fixed in 52 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 52.0VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 52.0VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 52.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 52.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 52
  • Fix · CNA Thunderbird (Mozilla) Fixed in 52

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 52

    19 records Highest priority Priority MEDIUM 4 MEDIUM, 15 LOW

    Other records, highest priority first

    • TI-2017-03441 Memory corruption in Mozilla FirefoxPriority MEDIUM 46
    • TI-2017-03427 Memory corruption in Mozilla FirefoxPriority MEDIUM 46
    • TI-2017-03431 Use after free in Mozilla FirefoxPriority MEDIUM 45
    Show all 19 records →
  • Release ·

    Mozilla Thunderbird 52

    14 records Highest priority Priority MEDIUM 4 MEDIUM, 10 LOW

    Other records, highest priority first

    • TI-2017-03441 Memory corruption in Mozilla FirefoxPriority MEDIUM 46
    • TI-2017-03427 Memory corruption in Mozilla FirefoxPriority MEDIUM 46
    • TI-2017-03431 Use after free in Mozilla FirefoxPriority MEDIUM 45
    Show all 14 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-5419
  2. 2026-10-03 Alias added: GHSA-rg33-gjff-rggx

References

Exploit 1

Advisory 2

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences