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PatchSiren cyber security CVE debrief

CVE-2026-74975 Mozilla CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-18T13:17:35.353Z and has not been modified since then. This medium-severity spoofing vulnerability in the Downloads component of Firefox Mobile for Android was fixed in Firefox 154. The vulnerability is characterized by a CVSS score of 5.4. Organizations and individuals using Firefox Mobile for Android should prioritize updating to version 154 or later.

Vendor
Mozilla
Product
Firefox Mobile
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-18
Original CVE updated
2026-08-25
Advisory published
2026-08-18
Advisory updated
2026-08-25

Who should care

Organizations and individuals using Firefox Mobile for Android, particularly those concerned with security and spoofing vulnerabilities, should prioritize updating to version 154 or later. This includes IT administrators, security teams, and end-users who rely on Firefox Mobile for Android for secure browsing experiences.

Technical summary

CVE-2026-74975 is a medium-severity spoofing vulnerability in the Downloads component of Firefox Mobile for Android. The issue was fixed in Firefox 154. The vulnerability is characterized by a CVSS score of 5.4 and a vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L. This vulnerability may allow attackers to spoof content, potentially leading to phishing or other malicious activities. The vulnerability affects Firefox Mobile for Android, particularly those concerned with security and spoofing vulnerabilities.

Defensive priority

Organizations using Firefox Mobile for Android should prioritize updating to version 154 or later to mitigate this spoofing vulnerability.

Recommended defensive actions

  • Update Firefox Mobile for Android to version 154 or later
  • Review and implement secure configuration and usage guidelines for Firefox Mobile
  • Monitor for and respond to potential spoofing attempts
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE-2026-74975 record indicates a medium-severity spoofing issue in Firefox Mobile for Android, which was fixed in Firefox 154. The NVD entry is currently Analyzed. Further verification is recommended to confirm affected deployments and assess potential impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-74975 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-74975

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-74975 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-74975

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.