Is CVE-2026-2768 actively exploited?

No active exploitation of CVE-2026-2768 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-2768 be exploited remotely?

Yes. CVE-2026-2768 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2768?

CVE-2026-2768 has a CVSS score of 10.0 (CRITICAL) and an EPSS exploitation probability of 0.05%.

HOME VULNERABILITIESCVE-2026-2768

CRITICAL

CVE-2026-2768

Published: February 24, 2026· Updated: Feb 26, 2026

10.0

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:16.5th

Official Description

Sandbox escape in the Storage: IndexedDB component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.

NVD Source

Technical Analysis

CVE-2026-2768 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

Mozilla2 products

firefoxthunderbird

Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Exploit-DB

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

PacketStorm

Security advisories & exploits

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2026-13/

ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2026-15/

ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2026-16/

ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2026-17/

News & Research Mentioning CVE-2026-2768

April Patch Tuesday Fixes Critical Flaws Across SAP, Adobe, Microsoft, Fortinet, and More

The Hacker News· Apr 15, 2026

A number of critical vulnerabilities impacting products from Adobe, Fortinet, Microsoft, and SAP have taken center stage in April's Patch Tuesday releases. Topping the list is an SQL injection vulnerability impacting SAP Business Planning and Consolidation and SAP Business Warehouse (CVE-2026-27681, CVSS score: 9.9) that could result in the execution of arbitrary database [xlite_meta score:50 src:The Hacker News xlite_fp:b729098e2ea96e40db95ab036d76c357768dea49861ce8d09d4c2393c07baacb]

Dozens of Vendors Patch Security Flaws Across Enterprise Software and Network Devices

The Hacker News· Mar 11, 2026

SAP has released security updates to address two critical security flaws that could be exploited to achieve arbitrary code execution on affected systems. The vulnerabilities in question listed below - CVE-2019-17571 (CVSS score: 9.8) - A code injection vulnerability in SAP Quotation Management Insurance application (FS-QUO) CVE-2026-27685 (CVSS score: 9.1) - An insecure deserialization [xlite_meta score:53 src:The Hacker News xlite_fp:5d08097eaab77c5689cf72cb1272689a269ee25261173b90492bbaa165c3bcc5]