How severe is CVE-2019-9491?

CVE-2019-9491 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-9491 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9491?

CVE-2019-9491 affects Trendmicro Anti-threat Toolkit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-9491?

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-2019-9491 published?

CVE-2019-9491 was published on 2019-10-21 and last updated on 2026-06-17.

CVE-2019-9491

CVE-2019-9491 is a high-severity vulnerability in Trendmicro Anti-threat Toolkit with a CVSS 3.x base score of 7.8. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-427.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 5.1
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-427
Affected product: Trendmicro Anti-threat Toolkit
Published: 2019-10-21
Last modified: 2026-06-17

Description

Trend Micro Anti-Threat Toolkit (ATTK) versions 1.62.0.1218 and below have a vulnerability that may allow an attacker to place malicious files in the same directory, potentially leading to arbitrary remote code execution (RCE) when executed.

Frequently asked questions

What is CVE-2019-9491?: Trend Micro Anti-Threat Toolkit (ATTK) versions 1.62.0.1218 and below have a vulnerability that may allow an attacker to place malicious files in the same directory, potentially leading to arbitrary remote code execution (RCE) when executed.
How severe is CVE-2019-9491?: CVE-2019-9491 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-9491 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9491?: CVE-2019-9491 affects Trendmicro Anti-threat Toolkit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-9491?: 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-2019-9491 published?: CVE-2019-9491 was published on 2019-10-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:trendmicro:anti-threat_toolkit:*:*:*:*:*:*:*:*

More vulnerabilities in Trendmicro Anti-threat Toolkit

CVE-2019-20358 — High (CVSS 7.8): Trend Micro Anti-Threat Toolkit (ATTK) versions 1.62.0.1218 and below have a vulnerability that may allow an attacker…

All CVEs affecting Trendmicro Anti-threat Toolkit →

Other CWE-427 (Uncontrolled Search Path Element) vulnerabilities

CVE-2025-4981 — Critical (CVSS 9.9): Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to…
CVE-2025-69599 — Critical (CVSS 9.8): RayVentory Scan Engine through 12.6 Update 8 allows attackers to gain privileges if they control the value of the PATH…
CVE-2019-25268 — Critical (CVSS 9.8): NREL BEopt 2.8.0.0 contains a DLL hijacking vulnerability that allows attackers to load arbitrary libraries by tricking…
CVE-2023-53959 — Critical (CVSS 9.8): FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by…
CVE-2025-65741 — Critical (CVSS 9.8): Sublime Text 3 Build 3208 or prior for MacOS is vulnerable to Dylib Injection. An attacker could compile a .dylib file…
CVE-2024-23054 — Critical (CVSS 9.8): An issue in Plone Docker Official Image 5.2.13 (5221) open-source software that could allow for remote code execution…

Browse all CWE-427 (Uncontrolled Search Path Element) vulnerabilities →