How severe is CVE-2018-15807?

CVE-2018-15807 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-2018-15807 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15807?

CVE-2018-15807 affects Posim Evo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15807?

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-2018-15807 published?

CVE-2018-15807 was published on 2018-08-23 and last updated on 2026-06-17.

CVE-2018-15807

CVE-2018-15807 is a high-severity vulnerability in Posim Evo 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-330.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-330
Affected product: Posim Evo
Published: 2018-08-23
Last modified: 2026-06-17

Description

POSIM EVO 15.13 for Windows includes an "Emergency Override" administrative account that may be accessed through POSIM's "override" feature. This Override prompt expects a code that is computed locally using a deterministic algorithm. This code may be generated by an attacker and used to bypass any POSIM EVO login prompt.

Frequently asked questions

What is CVE-2018-15807?: POSIM EVO 15.13 for Windows includes an "Emergency Override" administrative account that may be accessed through POSIM's "override" feature. This Override prompt expects a code that is computed locally using a deterministic algorithm. This code may be generated by an attacker and used to bypass any POSIM EVO login prompt.
How severe is CVE-2018-15807?: CVE-2018-15807 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-2018-15807 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15807?: CVE-2018-15807 affects Posim Evo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15807?: 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-2018-15807 published?: CVE-2018-15807 was published on 2018-08-23 and last updated on 2026-06-17.

References

https://versprite.com/advisories/posim-evo-for-windows/

Affected products (1)

cpe:2.3:a:posim:evo:15.13:*:*:*:*:windows:*:*

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