How severe is CVE-2018-10959?

CVE-2018-10959 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-10959 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-10959?

CVE-2018-10959 affects Beyondtrust Avecto Defendpoint. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-10959?

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-2018-10959 published?

CVE-2018-10959 was published on 2019-04-17 and last updated on 2026-06-17.

CVE-2018-10959

CVE-2018-10959 is a high-severity vulnerability in Beyondtrust Avecto Defendpoint with a CVSS 3.x base score of 7.5. 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-426.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Beyondtrust Avecto Defendpoint
Published: 2019-04-17
Last modified: 2026-06-17

Description

Avecto Defendpoint 4 prior to 4.4 SR6 and 5 prior to 5.1 SR1 has an Untrusted Search Path vulnerability, exploitable by modifying environment variables to trigger automatic elevation of an attacker's process launch.

Frequently asked questions

What is CVE-2018-10959?: Avecto Defendpoint 4 prior to 4.4 SR6 and 5 prior to 5.1 SR1 has an Untrusted Search Path vulnerability, exploitable by modifying environment variables to trigger automatic elevation of an attacker's process launch.
How severe is CVE-2018-10959?: CVE-2018-10959 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-10959 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-10959?: CVE-2018-10959 affects Beyondtrust Avecto Defendpoint. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-10959?: 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-2018-10959 published?: CVE-2018-10959 was published on 2019-04-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:beyondtrust:avecto_defendpoint:*:*:*:*:*:*:*:*

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