VDB

CVE-2024-9398

CVE-2024-9398 PUBLISHED CVSS 5.3 MEDIUM

Reported by mozilla · Published October 1, 2024

By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
firefoxWolfi136.0.2-r0
firefox-esrChainguard128.3.0-r0
firefoxChainguard136.0.2-r0
firefoxmozilla131.0, 131, 128.3.0
firefox_esrmozilla128.3.0
thunderbirdmozilla131, 128.3
Firefox ESRMozilla128.3

Risk scores

CVSS 3.1
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

VendorProductVersions
MozillaFirefoxunspecified
MozillaFirefox ESRunspecified
MozillaThunderbirdunspecified
MozillaThunderbirdunspecified
MozillaFirefox*
wolfifirefox0
chainguardfirefox-esr0
MozillaFirefox ESR*
chainguardfirefox0
MozillaThunderbird*, *

Timeline

  • Oct 1, 2024 CVE Published
  • Oct 1, 2024 PoC Published (3 in total, the first dated here)
  • Oct 2, 2024 EPSS Score (30 in total, the first dated here)
  • Oct 5, 2024 Coalition ESS Score (17 in total, the first dated here)
  • Jun 2, 2026 Security Advisory (34 in total, the first dated here)
  • Jun 17, 2026 CVE Updated
  • Aug 10, 2026 Distribution Patch (19 in total, the first dated here)

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2024-9398
vulnetix vdb fixes CVE-2024-9398

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2024-9398/fixes/registry"

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References

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