How severe is CVE-2024-7227?

CVE-2024-7227 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-7227 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-7227?

CVE-2024-7227 affects Avast Free Antivirus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-7227?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-7227 have an EU (EUVD) identifier?

Yes. CVE-2024-7227 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48832.

When was CVE-2024-7227 published?

CVE-2024-7227 was published on 2024-11-22 and last updated on 2026-06-17.

CVE-2024-7227

CVE-2024-7227 is a high-severity vulnerability in Avast Free Antivirus with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-59.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-48832
Weakness: CWE-59
Affected product: Avast Free Antivirus
Published: 2024-11-22
Last modified: 2026-06-17

Description

Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22272.

Frequently asked questions

What is CVE-2024-7227?: Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22272.
How severe is CVE-2024-7227?: CVE-2024-7227 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-7227 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-7227?: CVE-2024-7227 affects Avast Free Antivirus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-7227?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-7227 have an EU (EUVD) identifier?: Yes. CVE-2024-7227 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48832.
When was CVE-2024-7227 published?: CVE-2024-7227 was published on 2024-11-22 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-24-1003/

Affected products (1)

cpe:2.3:a:avast:free_antivirus:23.9.6082:*:*:*:*:*:*:*

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