Is CVE-2026-2634 actively exploited?

No active exploitation of CVE-2026-2634 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-2634 be exploited remotely?

Yes. CVE-2026-2634 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2634?

CVE-2026-2634 has a CVSS score of 9.8 (CRITICAL) and an EPSS exploitation probability of 0.04%.

HOME VULNERABILITIESCVE-2026-2634

CRITICAL

CVE-2026-2634

Published: February 24, 2026· Updated: Feb 27, 2026

9.8

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.6th

Official Description

Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability affects Firefox for iOS < 147.4.

NVD Source

Technical Analysis

CVE-2026-2634 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 9.8.