CVE-2024-0749

Name: CVE-2024-0749
Creator: NVD / NIST
Published: 2024-01-23T14:15:38.55+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2024-0749 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. A phishing site could have repurposed an `about:` dialog to show phishing content with an incorrect origin in the address bar. This vulnerability affects Firefox < 122 and Thunderbird < 115.7.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

A phishing site could have repurposed an `about:` dialog to show phishing content with an incorrect origin in the address bar. This vulnerability affects Firefox < 122 and Thunderbird < 115.7.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.33%

25.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 122.0
Mozilla	Firefox Esr	< 115.7
Mozilla	Thunderbird	< 115.7
Debian	Debian Linux	10.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1813463Issue Tracking, Permissions Required
https://lists.debian.org/debian-lts-announce/2024/01/msg00015.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00022.htmlMailing List, Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2024-01/Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-04/Release Notes, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1813463Issue Tracking, Permissions Required
https://lists.debian.org/debian-lts-announce/2024/01/msg00015.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00022.htmlMailing List, Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2024-01/Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-04/Release Notes, Vendor Advisory

Timeline

Published: Jan 23, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-0749?

A phishing site could have repurposed an `about:` dialog to show phishing content with an incorrect origin in the address bar. This vulnerability affects Firefox < 122 and Thunderbird < 115.7.

How severe is CVE-2024-0749?

CVE-2024-0749 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2024-0749?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-0749?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST