—–BEGIN PGP SIGNED MESSAGE—–

Hash: SHA256

Multiple Vulnerabilities in Mozilla Products 

Indian – Computer Emergency Response Team (https://www.cert-in.org.in)

Severity Rating: HIGH

Software Affected

Mozilla Firefox versions prior to 147.0.2

Mozilla Thunderbird versions prior to 140.7.1

Mozilla Thunderbird versions prior to 147.0.1

Overview

Multiple vulnerabilities have been reported in Mozilla products which could be exploited by a remote attacker to execute arbitrary code on the targeted system.

Target Audience:

All end-user organizations and individuals using Mozilla Products.

Risk Assessment:

High risk of compromise and service disruptions.

Impact Assessment:

Potential for system compromise and service unavailability.

Description

Multiple vulnerabilities exist in Mozilla products due to Mitigation bypass in the Privacy: Anti-Tracking component; Use-after-free in the Layout: Scrolling and Overflow component; CSS-based exfiltration of the content from partially encrypted emails when allowing remote content. A remote attacker could exploit these vulnerabilities by convincing a victim to open a specially crafted web request.

Successful exploitation of these vulnerabilities could allow a remote attacker to execute arbitrary code on the targeted system.

Solution

Apply appropriate updates as mentioned by the vendor:

https://www.mozilla.org/en-US/security/advisories/mfsa2026-06/

https://www.mozilla.org/en-US/security/advisories/mfsa2026-07/

https://www.mozilla.org/en-US/security/advisories/mfsa2026-08/

References

Mozilla

https://www.mozilla.org/en-US/security/advisories/mfsa2026-06/

https://www.mozilla.org/en-US/security/advisories/mfsa2026-07/

https://www.mozilla.org/en-US/security/advisories/mfsa2026-08/

CVE Name

CVE-2026-24868

CVE-2026-24869

CVE-2026-0818

– —

Thanks and Regards,

CERT-In

Incident Response Help Desk

e-mail: incident@cert-in.org.in

Phone: +91-11-22902657

Toll Free Number: 1800-11-4949

Toll Free Fax : 1800-11-6969

Web: http://www.cert-in.org.in

PGP Fingerprint: A768 083E 4475 5725 B81A A379 2156 C0C0 B620 D0B4

PGP Key information:

https://www.cert-in.org.in/s2cMainServlet?pageid=CONTACTUS

Postal address:

Indian Computer Emergency Response Team (CERT-In)

Ministry of Electronics and Information Technology

Government of India

Electronics Niketan

6, C.G.O. Complex

New Delhi-110 003

—–BEGIN PGP SIGNATURE—–

iQIzBAEBCAAdFiEE6r4Iam/Ey0c/KakL3jCgcSdcys8FAml8m+MACgkQ3jCgcSdc

ys+veRAAmST9IXkpSnUD5NvF9SZfkJ6dyVlDhF97jsmlpNzL/fLD11E9hp4YLyXT

m6mndcQeU6fiGs82G0tVv6VUKK4ZRJmvHlbIrt+d4cI2qL1rbEhI7p3N3Dqj9Uvd

lW8Nalx10lStXFIzeYwVwYY8jTOkMPg+3BRKyTwnKuHDOLn6wCrnuQTJYMvijkTa

IQ6N5XqEAW1SpMUH/NUlMIUZe3BXbEkOBbg9egAJW1GbrClAdVQPI/36Bd/DDIcS

8Yzdklby64Rzjyshvtl46SaaQi6pLZzNZCKv8fhr9AasgEBvo4IPeePDJxaE7aRM

9vrSJOZ18AemvLgE9ZN6gIResy/8gTFO3JAycYnDuo8iW8Qn+zke6PNrIjU8xaaR

89AUVIM5bAHiiAGVX/c1iP2ffNGkk9r2QdJzVU46/ueI1rxMgIZDcDey26U4kCEU

erYSFBQSBjJ4A2lTsyEVcvArBUsYlAD/xPlFIFIcOQ9WMjnefbRwE+YfWAtaM7h7

VtnWz/rCD30Xhtg4lfrRhQQ64JJqDsunqft5DvpvzAyqQbkmbNkjPpPlNEGzOGe2

3tztaOst9UKK+8w0GUxg4F5ZRihLZu+jKWNnMiPUCAkRkOqV5ZYtijp+X7QZnmAo

tDoNOf3DPREFAleC1zi6he99DdUOoj6SSpJ13d0JuIMP8oO6bCs=

=+oaK

—–END PGP SIGNATURE—–