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CVE-2025-1933 JIT corruption of WASM i32 return values on 64-bit CPUs

🗓️ 04 Mar 2025 13:31:23Reported by mozillaType 
cvelist
 cvelist🔗 www.cve.org👁 27 Views

CVE-2025-1933 affects Firefox, causing type confusion from leftover memory in WASM return values.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
FreeBSD		mozilla -- 64 bit JIT WASM read on left over memory
4 Mar 202500:00
–freebsd
Tenable Nessus		Amazon Linux 2 : thunderbird (ALAS-2025-2807)
1 Apr 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : firefox (ALASFIREFOX-2025-036)
1 Apr 202500:00
–nessus
Tenable Nessus		AlmaLinux 9 : firefox (ALSA-2025:2359)
16 May 202500:00
–nessus
Tenable Nessus		AlmaLinux 8 : firefox (ALSA-2025:2452)
12 Mar 202500:00
–nessus
Tenable Nessus		Debian dla-4078 : firefox-esr - security update
6 Mar 202500:00
–nessus
Tenable Nessus		Debian dla-4081 : thunderbird - security update
10 Mar 202500:00
–nessus
Tenable Nessus		Debian dsa-5874 : firefox-esr - security update
6 Mar 202500:00
–nessus
Tenable Nessus		Debian dsa-5876 : thunderbird - security update
10 Mar 202500:00
–nessus
Tenable Nessus		Fedora 40 : firefox (2025-100adaf12d)
10 Mar 202500:00
–nessus
Rows per page
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "115.21",
        "lessThanOrEqual": "115.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "128.8",
        "lessThanOrEqual": "128.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "136",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "128.8",
        "lessThanOrEqual": "128.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "136",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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13 Apr 2026 14:27Current
EPSS0.00294
cve-2025-1933 firefox vulnerability type confusion memory leak 64-bit cpus wasm
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