Vulnerability identifier: #VU96737

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-8383

CWE-ID: CWE-939

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers
Firefox ESR
Client/Desktop applications / Web browsers
Firefox for Android
Mobile applications / Apps for mobile phones

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a missing confirmation dialog when opening the Usenet-related schemes "news:" and "snews:". A remote attacker can trick the victim into downloading a malicious application that can be launched at will without any additional prompts.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 100.0 - 129.0.2

Firefox ESR: 128.0 - 128.1.0, 115.0 - 115.14.0, 102.0 - 102.15.1

Firefox for Android: 100.1.0 - 129.0.2

---

External links
http://www.mozilla.org/en-US/security/advisories/mfsa2024-39/
http://www.mozilla.org/en-US/security/advisories/mfsa2024-40/
http://www.mozilla.org/en-US/security/advisories/mfsa2024-41/

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.