VulnerabilityPublished 11 Jun 2024Updated 22 Nov 2024

CVE-2024-34406: Improper Exception Handling

Source CVE Database V5

Not known to be exploited · CVSS 5.3 Medium · fixed in 8.3.0 : update affected systems when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score

5.3Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 8.3.0

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

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

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: None: The vulnerable system can be exploited without any interaction from any user.
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: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Jun 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

AI-suggested

To mitigate CVE-2024-34406, organizations should immediately update McAfee Security: Antivirus VPN for Android to version 8.3.0 or later, where the vulnerability has been addressed. If you cannot patch yet, organizations can implement the following specific measures: restrict or monitor the handling of deep links on managed devices to prevent processing of untrusted or malformed URLs; employ mobile device management (MDM) policies to control app permissions and limit exposure to external inputs; educate users about the risks of clicking unknown or suspicious links, even though user interaction is not required for exploitation; monitor application logs and device behavior for signs of crashes or instability that may indicate exploitation attempts; and coordinate with McAfee support for any additional patches or workarounds. Network-level protections such as URL filtering and threat intelligence feeds can also help reduce exposure to malicious deep links.

Description

Improper exception handling in McAfee Security: Antivirus VPN for Android before 8.3.0 could allow an attacker to cause a denial of service through the use of a malformed deep link.

Impact

The primary impact of CVE-2024-34406 is a denial of service condition that disrupts the normal operation of McAfee Security: Antivirus VPN on Android devices. This disruption can temporarily disable security protections, increasing the risk of further compromise or exposure to malware. For organizations relying on this app for endpoint protection on Android devices, this could lead to gaps in security coverage, especially in environments with high mobile device usage. Although the vulnerability does not directly expose sensitive data or allow privilege escalation, the loss of service integrity can degrade overall security posture. In sectors where mobile security is critical, such as finance, healthcare, and government, this could have operational and compliance implications. The ease of exploitation without user interaction or privileges increases the likelihood of automated or mass exploitation attempts if the vulnerability becomes widely known and weaponized.

References

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