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TI-2024-07776 Aliases CVE-2024-8386GHSA-p34f-6xg6-mcrp

Authentication bypass by spoofing in Mozilla Firefox

Priority LOW 27CWE-290Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass, Spoofing
Confidentiality · integrity · availability
Low · Low · None
Fix status
Partial Red Hat: 13 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-290 and CWE-601.

Summary

If a site had been granted the permission to open popup windows, it could cause Select elements to appear on top of another site to perform a spoofing attack. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00388 33rd percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 130Firefox ESR (Mozilla): 128.2+1 more productRed Hat: 17 advisoriesRed Hat: 13 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 130130Patch availableCNA
MozillaFirefox ESRbefore 128.2128.2Patch availableCNA
MozillaThunderbirdbefore 128.2128.2Patch availableCNA
  • Firefox VendorMozilla Affected before 130 Fixed in 130 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 128.2 Fixed in 128.2 Patch available CNA
  • Thunderbird VendorMozilla Affected before 128.2 Fixed in 128.2 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 130.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 128.2VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 130.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 128.2 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 130
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 128.2
  • Fix · CNA Thunderbird (Mozilla) Fixed in 128.2

Red Hat 17 advisories

  • RHSA-2024:6892 Released 2024-09-19 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) firefox-128.2.0-1.el8_6
    • Red Hat Enterprise Linux AppStream E4S (v.8.6) firefox-128.2.0-1.el8_6
    • Red Hat Enterprise Linux AppStream TUS (v.8.6) firefox-128.2.0-1.el8_6
  • RHSA-2024:6891 Released 2024-09-19 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-128.2.0-1.el8_4
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox-128.2.0-1.el8_4
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox-128.2.0-1.el8_4
  • RHSA-2024:6850 Released 2024-09-19 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox-128.2.0-1.el8_8
Show 14 more Red Hat advisories
  • RHSA-2024:6838 Released 2024-09-19 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux Server (v. 7 ELS) firefox-128.2.0-1.el7_9
  • RHSA-2024:6839 Released 2024-09-19 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-128.2.0-1.el8_2
  • RHSA-2024:6816 Released 2024-09-19 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream TUS (v.8.6) thunderbird-128.2.0-1.el8_6
  • RHSA-2024:6786 Released 2024-09-18 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox-128.2.0-1.el9_2, firefox-x11-128.2.0-1.el9_2
  • RHSA-2024:6782 Released 2024-09-18 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) firefox-128.2.0-1.el9_0
  • RHSA-2024:6719 Released 2024-09-17 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) thunderbird-128.2.0-1.el8_8
  • RHSA-2024:6721 Released 2024-09-17 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-128.2.0-1.el8_4
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) thunderbird-128.2.0-1.el8_4
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) thunderbird-128.2.0-1.el8_4
  • RHSA-2024:6723 Released 2024-09-17 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-128.2.0-1.el8_2
  • RHSA-2024:6720 Released 2024-09-17 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) thunderbird-128.2.0-1.el9_2
  • RHSA-2024:6722 Released 2024-09-17 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) thunderbird-128.2.0-1.el9_0
  • RHSA-2024:6683 Released 2024-09-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-128.2.0-1.el9_4
  • RHSA-2024:6684 Released 2024-09-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-128.2.0-1.el8_10
  • RHSA-2024:6681 Released 2024-09-16 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-128.2.0-1.el9_4, firefox-x11-128.2.0-1.el9_4
  • RHSA-2024:6682 Released 2024-09-16 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-128.2.0-1.el8_10

Fixed in the same release

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

  • Release ·

    Mozilla Firefox 130

    9 records Highest priority Priority MEDIUM 7 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2024-07771 Type confusion in Mozilla FirefoxPriority MEDIUM 56
    • TI-2024-07777 Memory corruption in Mozilla FirefoxPriority MEDIUM 50
    • TI-2024-07775 Type confusion in Mozilla FirefoxPriority MEDIUM 50
    Show all 9 records →
  • Release ·

    Mozilla Firefox ESR 128.2

    7 records Highest priority Priority MEDIUM 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2024-07771 Type confusion in Mozilla FirefoxPriority MEDIUM 56
    • TI-2024-07777 Memory corruption in Mozilla FirefoxPriority MEDIUM 50
    • TI-2024-07775 Type confusion in Mozilla FirefoxPriority MEDIUM 50
    Show all 7 records →
Show 1 more group
  • Release ·

    Mozilla Thunderbird 128.2

    6 records Highest priority Priority MEDIUM 5 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2024-07771 Type confusion in Mozilla FirefoxPriority MEDIUM 56
    • TI-2024-07777 Memory corruption in Mozilla FirefoxPriority MEDIUM 50
    • TI-2024-07775 Type confusion in Mozilla FirefoxPriority MEDIUM 50
    Show all 6 records →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:6682, RHSA-2024:6684
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:6681, RHSA-2024:6683
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2024:6723, RHSA-2024:6839
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2024:6721, RHSA-2024:6891
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2024:6892
Red Hat Enterprise Linux AppStream E4S (v.8.4)Fixed RHSA-2024:6721, RHSA-2024:6891
Red Hat Enterprise Linux AppStream E4S (v.8.6)Fixed RHSA-2024:6892
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2024:6722, RHSA-2024:6782
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2024:6719, RHSA-2024:6850
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:6720, RHSA-2024:6786
Red Hat Enterprise Linux AppStream TUS (v.8.4)Fixed RHSA-2024:6721, RHSA-2024:6891
Red Hat Enterprise Linux AppStream TUS (v.8.6)Fixed RHSA-2024:6816, RHSA-2024:6892
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2024:6838

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-8386
  2. 2026-10-03 Alias added: GHSA-p34f-6xg6-mcrp

References

Advisory 2

Other 4

  • 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