CVE-2024-11701Public exploitNetwork attack vector

Address-bar spoofing via interrupted navigation

Published Nov 26, 2024 · Updated Nov 27, 2024

Address-bar spoofing in Mozilla Firefox and Thunderbird before 133 allows remote attackers to show a false domain after interrupted navigation. A page's onbeforeunload handler can stop a user-initiated navigation while Fenix commits the requested destination to the address bar even though attacker-controlled content remains displayed. Exploitation requires a user to visit the malicious page, edit the address bar, and submit another destination; Mozilla's technical record identifies Firefox for Android as the concrete implementation, while its advisories also list Firefox and Thunderbird.

CVSS severity4.3
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Address-bar spoofing in Mozilla Firefox and Thunderbird before 133 allows remote attackers to show a false domain after interrupted navigation. A page's onbeforeunload handler can stop a user-initiated navigation while Fenix commits the requested destination to the address bar even though attacker-controlled content remains displayed. Exploitation requires a user to visit the malicious page, edit the address bar, and submit another destination; Mozilla's technical record identifies Firefox for Android as the concrete implementation, while its advisories also list Firefox and Thunderbird.

The record

CVE
CVE-2024-11701
Published
Nov 26, 2024
Updated
Nov 27, 2024
Vendor
Mozilla
Product
Firefox
Classifications
CWE-290, T1036
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <133
  2. Affected versionversion=unspecified <133

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mozilla · Firefoxversion=0 <133; version=unspecified <133
Mozilla · Thunderbirdversion=0 <133; version=unspecified <133

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1036Masquerading

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo