How severe is CVE-2018-6503?

CVE-2018-6503 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-6503 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6503?

CVE-2018-6503 affects Hp Arcsight Management Center. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6503?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-6503 published?

CVE-2018-6503 was published on 2018-09-20 and last updated on 2026-06-17.

CVE-2018-6503

CVE-2018-6503 is a medium-severity vulnerability in Hp Arcsight Management Center with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.8
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Hp Arcsight Management Center
Published: 2018-09-20
Last modified: 2026-06-17

Description

A potential Access Control vulnerability has been identified in ArcSight Management Center (ArcMC) in all versions prior to 2.81. This vulnerability could be exploited to allow for vulnerable Access Controls.

Frequently asked questions

What is CVE-2018-6503?: A potential Access Control vulnerability has been identified in ArcSight Management Center (ArcMC) in all versions prior to 2.81. This vulnerability could be exploited to allow for vulnerable Access Controls.
How severe is CVE-2018-6503?: CVE-2018-6503 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-6503 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6503?: CVE-2018-6503 affects Hp Arcsight Management Center. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6503?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-6503 published?: CVE-2018-6503 was published on 2018-09-20 and last updated on 2026-06-17.

References

https://softwaresupport.softwaregrp.com/document/-/facetsearch/document/KM03245142

Affected products (1)

cpe:2.3:a:hp:arcsight_management_center:*:*:*:*:*:*:*:*

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