VDB
CVE-2026-4728
CVE-2026-4728
PUBLISHED
CVSS 6.5 MEDIUM
Spoofing issue in the Privacy: Anti-Tracking component. This vulnerability affects Firefox < 149.
EPSS 0.01% · 1.9th percentile
Risk Scores
CVSS v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS Score
0.01%
1.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | unspecified, 149, unspecified |
| Mozilla | Firefox ESR | unspecified, unspecified |
| mozilla | thunderbird | 0 |
| Mozilla | Firefox | *, 149 |
| mozilla | firefox | 0 |
Timeline
- Mar 24, 2026 CVE Published
- Mar 24, 2026 PoC Published
- Mar 25, 2026 EPSS Score
- Mar 25, 2026 Coalition ESS Score
- Mar 25, 2026 PoC Published
- Mar 25, 2026 PoC Published
- Mar 25, 2026 PoC Published
- Mar 26, 2026 EPSS Score
- Mar 27, 2026 Coalition ESS Score
- Apr 13, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
References
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-20/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-24/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-23/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-22/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-21/ advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=2011129 url
- https://www.mozilla.org/security/advisories/mfsa2026-20/ url
- https://www.mozilla.org/security/advisories/mfsa2026-21/ url
- https://www.mozilla.org/security/advisories/mfsa2026-22/ url
- https://www.mozilla.org/security/advisories/mfsa2026-23/ url
- https://www.mozilla.org/security/advisories/mfsa2026-24/ url
- https://bugzilla.mozilla.org/show_bug.cgi?id=2013179 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-4728 advisory
- https://www.mozilla.org/security/advisories/mfsa2026-20 url
- https://www.mozilla.org/security/advisories/mfsa2026-23 url