CVE-2026-14241
Memory safety bugs fixed in Firefox 152.0.4
CVE-2026-14241 is fixed in 102 products on 2 platforms, first by Mozilla Firefox 152.0.4, released June 29, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
UrgentFixed on 2 platforms
CVSS
9.8
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0043
37th percentile
Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152.0.4.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Firefox (ach) | 152.0.4 | Mozilla Firefox (ach) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (af) | 152.0.4 | Mozilla Firefox (af) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (an) | 152.0.4 | Mozilla Firefox (an) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ar) | 152.0.4 | Mozilla Firefox (ar) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ast) | 152.0.4 | Mozilla Firefox (ast) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (az) | 152.0.4 | Mozilla Firefox (az) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (be) | 152.0.4 | Mozilla Firefox (be) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (bg) | 152.0.4 | Mozilla Firefox (bg) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (bn) | 152.0.4 | Mozilla Firefox (bn) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (br) | 152.0.4 | Mozilla Firefox (br) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (bs) | 152.0.4 | Mozilla Firefox (bs) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ca) | 152.0.4 | Mozilla Firefox (ca) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ca-valencia) | 152.0.4 | Mozilla Firefox (ca-valencia) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (cak) | 152.0.4 | Mozilla Firefox (cak) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (cs) | 152.0.4 | Mozilla Firefox (cs) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (cy) | 152.0.4 | Mozilla Firefox (cy) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (da) | 152.0.4 | Mozilla Firefox (da) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (de) | 152.0.4 | Mozilla Firefox (de) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (dsb) | 152.0.4 | Mozilla Firefox (dsb) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (el) | 152.0.4 | Mozilla Firefox (el) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (en-CA) | 152.0.4 | Mozilla Firefox (en-CA) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (en-GB) | 152.0.4 | Mozilla Firefox (en-GB) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (en-US) | 152.0.4 | Mozilla Firefox (en-US) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (eo) | 152.0.4 | Mozilla Firefox (eo) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (es-AR) | 152.0.4 | Mozilla Firefox (es-AR) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (es-CL) | 152.0.4 | Mozilla Firefox (es-CL) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (es-ES) | 152.0.4 | Mozilla Firefox (es-ES) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (es-MX) | 152.0.4 | Mozilla Firefox (es-MX) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (et) | 152.0.4 | Mozilla Firefox (et) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (eu) | 152.0.4 | Mozilla Firefox (eu) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (fa) | 152.0.4 | Mozilla Firefox (fa) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ff) | 152.0.4 | Mozilla Firefox (ff) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (fi) | 152.0.4 | Mozilla Firefox (fi) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (fr) | 152.0.4 | Mozilla Firefox (fr) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (fur) | 152.0.4 | Mozilla Firefox (fur) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (fy-NL) | 152.0.4 | Mozilla Firefox (fy-NL) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ga-IE) | 152.0.4 | Mozilla Firefox (ga-IE) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (gd) | 152.0.4 | Mozilla Firefox (gd) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (gl) | 152.0.4 | Mozilla Firefox (gl) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (gn) | 152.0.4 | Mozilla Firefox (gn) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (gu-IN) | 152.0.4 | Mozilla Firefox (gu-IN) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (he) | 152.0.4 | Mozilla Firefox (he) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (hi-IN) | 152.0.4 | Mozilla Firefox (hi-IN) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (hr) | 152.0.4 | Mozilla Firefox (hr) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (hsb) | 152.0.4 | Mozilla Firefox (hsb) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (hu) | 152.0.4 | Mozilla Firefox (hu) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (hy-AM) | 152.0.4 | Mozilla Firefox (hy-AM) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ia) | 152.0.4 | Mozilla Firefox (ia) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (id) | 152.0.4 | Mozilla Firefox (id) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (is) | 152.0.4 | Mozilla Firefox (is) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (it) | 152.0.4 | Mozilla Firefox (it) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ja) | 152.0.4 | Mozilla Firefox (ja) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ka) | 152.0.4 | Mozilla Firefox (ka) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (kab) | 152.0.4 | Mozilla Firefox (kab) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (kk) | 152.0.4 | Mozilla Firefox (kk) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (km) | 152.0.4 | Mozilla Firefox (km) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (kn) | 152.0.4 | Mozilla Firefox (kn) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ko) | 152.0.4 | Mozilla Firefox (ko) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (lij) | 152.0.4 | Mozilla Firefox (lij) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (lt) | 152.0.4 | Mozilla Firefox (lt) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (lv) | 152.0.4 | Mozilla Firefox (lv) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (mk) | 152.0.4 | Mozilla Firefox (mk) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (mr) | 152.0.4 | Mozilla Firefox (mr) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ms) | 152.0.4 | Mozilla Firefox (ms) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (my) | 152.0.4 | Mozilla Firefox (my) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (nb-NO) | 152.0.4 | Mozilla Firefox (nb-NO) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ne-NP) | 152.0.4 | Mozilla Firefox (ne-NP) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (nl) | 152.0.4 | Mozilla Firefox (nl) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (nn-NO) | 152.0.4 | Mozilla Firefox (nn-NO) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (oc) | 152.0.4 | Mozilla Firefox (oc) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (pa-IN) | 152.0.4 | Mozilla Firefox (pa-IN) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (pl) | 152.0.4 | Mozilla Firefox (pl) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (pt-BR) | 152.0.4 | Mozilla Firefox (pt-BR) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (pt-PT) | 152.0.4 | Mozilla Firefox (pt-PT) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (rm) | 152.0.4 | Mozilla Firefox (rm) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ro) | 152.0.4 | Mozilla Firefox (ro) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ru) | 152.0.4 | Mozilla Firefox (ru) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (sc) | 152.0.4 | Mozilla Firefox (sc) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (sco) | 152.0.4 | Mozilla Firefox (sco) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (si) | 152.0.4 | Mozilla Firefox (si) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (sk) | 152.0.4 | Mozilla Firefox (sk) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (sl) | 152.0.4 | Mozilla Firefox (sl) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (son) | 152.0.4 | Mozilla Firefox (son) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (sq) | 152.0.4 | Mozilla Firefox (sq) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (sr) | 152.0.4 | Mozilla Firefox (sr) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (sv-SE) | 152.0.4 | Mozilla Firefox (sv-SE) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (szl) | 152.0.4 | Mozilla Firefox (szl) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ta) | 152.0.4 | Mozilla Firefox (ta) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (te) | 152.0.4 | Mozilla Firefox (te) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (tg) | 152.0.4 | Mozilla Firefox (tg) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (th) | 152.0.4 | Mozilla Firefox (th) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (tl) | 152.0.4 | Mozilla Firefox (tl) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (tr) | 152.0.4 | Mozilla Firefox (tr) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (trs) | 152.0.4 | Mozilla Firefox (trs) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (uk) | 152.0.4 | Mozilla Firefox (uk) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (ur) | 152.0.4 | Mozilla Firefox (ur) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (uz) | 152.0.4 | Mozilla Firefox (uz) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (vi) | 152.0.4 | Mozilla Firefox (vi) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (xh) | 152.0.4 | Mozilla Firefox (xh) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (zh-CN) | 152.0.4 | Mozilla Firefox (zh-CN) 152.0.4 | Jun 30, 2026 |
| Mozilla Firefox (zh-TW) | 152.0.4 | Mozilla Firefox (zh-TW) 152.0.4 | Jun 30, 2026 |
| macOS | |||
| Mozilla Firefox | 152.0.4 | Mozilla Firefox 152.0.4 | Jun 29, 2026 |
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