CVE-2026-4722 | Mozilla Firefox up to 148 IPC Remote Code Execution

VDB-352773 · CVE-2026-4722 · GCVE-0-2026-4722 MOZILLA FIREFOX UP TO 148 IPC REMOTE CODE EXECUTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.0 $5k-$25k 2.53+ Summaryinfo A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 148. This vulnerability affects unknown code of the component IPC. Performing a manipulation results in an unknown weakness. This vulnerability was named CVE-2026-4722. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component. Detailsinfo A vulnerability classified as critical has been found in Mozilla Firefox up to 148. This affects an unknown functionality of the component IPC. The impact remains unknown. The summary by CVE is: Privilege escalation in the IPC component. This vulnerability affects Firefox < 149. The advisory is shared at bugzilla.mozilla.org. This vulnerability is uniquely identified as CVE-2026-4722 since 03/24/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 03/24/2026). Upgrading to version 149 eliminates this vulnerability. Productinfo Type Web Browser Vendor Mozilla Name Firefox Version 148 License open-source Website Vendor: https://www.mozilla.org/ Product: https://www.mozilla.org/en-US/firefox/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.0 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Remote Code Execution CWE: Unknown CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Firefox 149 Timelineinfo 03/24/2026 Advisory disclosed 03/24/2026 +0 days CVE reserved 03/24/2026 +0 days VulDB entry created 03/24/2026 +0 days VulDB entry last update Sourcesinfo Vendor: mozilla.org Product: mozilla.org Advisory: bugzilla.mozilla.org Status: Confirmed CVE: CVE-2026-4722 (🔒) GCVE (CVE): GCVE-0-2026-4722 GCVE (VulDB): GCVE-100-352773 Entryinfo Created: 03/24/2026 14:46 Changes: 03/24/2026 14:46 (54) Complete: 🔍 Cache ID: 99:A93:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸