CVE-2021-28648
CVE-2021-28648 is a high-severity vulnerability in Trendmicro 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.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 4.6
- EPSS exploit prediction: 1% (41st percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Trendmicro Antivirus
- Published:
- Last modified:
Description
Trend Micro Antivirus for Mac 2020 v10.5 and 2021 v11 (Consumer) is vulnerable to an improper access control privilege escalation vulnerability that could allow an attacker to establish a connection that could lead to full local privilege escalation within the application. Please note that an attacker must first obtain the ability to execute low-privileged code on the target system to exploit this vulnerability.
Frequently asked questions
- What is CVE-2021-28648?
- Trend Micro Antivirus for Mac 2020 v10.5 and 2021 v11 (Consumer) is vulnerable to an improper access control privilege escalation vulnerability that could allow an attacker to establish a connection that could lead to full local privilege escalation within the application. Please note that an attacker must first obtain the ability to execute low-privileged code on the target system to exploit this vulnerability.
- How severe is CVE-2021-28648?
- CVE-2021-28648 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-2021-28648 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-28648?
- CVE-2021-28648 affects Trendmicro Antivirus. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-28648?
- 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.
- When was CVE-2021-28648 published?
- CVE-2021-28648 was published on 2021-04-22 and last updated on 2026-06-17.
References
- https://helpcenter.trendmicro.com/en-us/article/TMKA-10293
- https://www.zerodayinitiative.com/advisories/ZDI-21-420/
Affected products (1)
- cpe:2.3:a:trendmicro:antivirus:*:*:*:*:*:macos:*:*
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