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TI-2025-01681 Aliases CVE-2025-1936GHSA-x4j2-c46q-7jp5

Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents

Priority LOW 38CWE-158Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Partial Red Hat: 14 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but the fake extension after the null was used to determine the type of content. This could have been used to hide code in a web extension disguised as something else like an image. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00447 39th percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 128.8, 136Thunderbird (Mozilla): 128.8, 136Red Hat: 10 advisoriesRed Hat: 14 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
MozillaFirefox—128.8, 136Patch availableCNA
MozillaThunderbird—128.8, 136Patch availableCNA
  • Firefox VendorMozilla Affected — Fixed in 128.8, 136 Patch available CNA
  • Thunderbird VendorMozilla Affected — Fixed in 128.8, 136 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*before 128.8.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*before 136.0VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 128.8.0; 129.0 to before 136.0VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* Versions before 128.8.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* Versions before 136.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 128.8.0; 129.0 to before 136.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 128.8, 136
  • Fix · CNA Thunderbird (Mozilla) Fixed in 128.8, 136

Red Hat 10 advisories

  • RHSA-2025:2708 Released 2025-03-13 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-128.8.0-1.el8_2
  • RHSA-2025:2699 Released 2025-03-13 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) firefox-128.8.0-1.el7_9
  • RHSA-2025:2486 Released 2025-03-10 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox-128.8.0-1.el8_8
Show 7 more Red Hat advisories
  • RHSA-2025:2484 Released 2025-03-10 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-128.8.0-1.el8_4
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox-128.8.0-1.el8_4
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox-128.8.0-1.el8_4
  • RHSA-2025:2485 Released 2025-03-10 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) firefox-128.8.0-1.el8_6
    • Red Hat Enterprise Linux AppStream E4S (v.8.6) firefox-128.8.0-1.el8_6
    • Red Hat Enterprise Linux AppStream TUS (v.8.6) firefox-128.8.0-1.el8_6
  • RHSA-2025:2479 Released 2025-03-10 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) firefox-128.8.0-1.el9_4, firefox-x11-128.8.0-1.el9_4
  • RHSA-2025:2480 Released 2025-03-10 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox-128.8.0-1.el9_2, firefox-x11-128.8.0-1.el9_2
  • RHSA-2025:2481 Released 2025-03-10 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) firefox-128.8.0-1.el9_0
  • RHSA-2025:2452 Released 2025-03-06 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-128.8.0-1.el8_10
  • RHSA-2025:2359 Released 2025-03-05 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-128.8.0-1.el9_5, firefox-x11-128.8.0-1.el9_5

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2025:2452
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:2359
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2025:2708
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2025:2484
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2025:2485
Red Hat Enterprise Linux AppStream E4S (v.8.4)Fixed RHSA-2025:2484
Red Hat Enterprise Linux AppStream E4S (v.8.6)Fixed RHSA-2025:2485
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:2481
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2025:2486
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2025:2480
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:2479
Red Hat Enterprise Linux AppStream TUS (v.8.4)Fixed RHSA-2025:2484
Red Hat Enterprise Linux AppStream TUS (v.8.6)Fixed RHSA-2025:2485
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:2699

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-1936
  2. 2026-10-03 Alias added: GHSA-x4j2-c46q-7jp5

References

Advisory 4

Other 1

  • 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