VulnerabilityPublished 9 Jul 2024Updated 30 Oct 2025

CVE-2024-6608: Mozilla Firefox

Affects Mozilla FirefoxSource CVE Database V5

Not known to be exploited · CVSS 4.3 Medium : upgrade to 128 when convenient.

Data as of 26 Oct 2026, 11:07 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 128

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Jul 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Mozilla Firefox to 128.

Affected software

Product	Affected	Fixed in
Mozilla Firefox	Affected <128	Fixed in 128

AI-suggested

Until then, organizations can implement the following specific measures: 1) Restrict or monitor iframe content on internal and external websites, especially from untrusted sources, to reduce exposure to malicious pointerlock usage. 2) Educate users about the risks of interacting with untrusted web content and the importance of cautious behavior when prompted for pointerlock or similar permissions. 3) Employ browser security policies or extensions that limit pointerlock API usage or sandbox iframe content more strictly. 4) Use endpoint protection solutions that can detect suspicious browser behavior or unusual cursor movements indicative of exploitation attempts. 5) Monitor network traffic and logs for unusual activity related to pointerlock API calls or iframe embedding. 6) Coordinate with IT and security teams to ensure timely patch management and vulnerability scanning for Mozilla products. These targeted actions go beyond generic advice by focusing on controlling iframe content and user interaction vectors specific to this vulnerability.

Description

It was possible to move the cursor using pointerlock from an iframe. This allowed moving the cursor outside of the viewport and the Firefox window. This vulnerability affects Firefox < 128 and Thunderbird < 128.

Impact

For European organizations, the impact of CVE-2024-6608 is primarily related to user experience disruption and potential denial of service through cursor manipulation. While it does not compromise data confidentiality or integrity, the ability to move the cursor outside the viewport could be exploited in phishing or social engineering attacks to mislead users or interfere with their interactions, potentially leading to inadvertent clicks or actions. Organizations relying heavily on Firefox and Thunderbird, especially in sectors with high web application usage or remote work environments, may experience increased risk of user confusion or productivity loss. The vulnerability could be leveraged in targeted attacks against employees to facilitate further social engineering or malware delivery. However, the lack of known exploits and the requirement for user interaction limit the immediate risk. The medium severity rating reflects these factors. Nonetheless, organizations should consider this vulnerability in their risk assessments, especially those with large user bases of affected Mozilla products.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 30 Oct 2025, 16:44 UTC

Technical details

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