How severe is CVE-2016-8580?

CVE-2016-8580 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-8580 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-8580?

CVE-2016-8580 primarily affects Alienvault Open Source Security Information And Event Management. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-8580?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-8580 published?

CVE-2016-8580 was published on 2016-10-28 and last updated on 2026-06-17.

CVE-2016-8580

CVE-2016-8580 is a critical-severity vulnerability in Alienvault Open Source Security Information And Event Management with a CVSS 3.x base score of 9.8. 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-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Alienvault Open Source Security Information And Event Management
Published: 2016-10-28
Last modified: 2026-06-17

Description

PHP object injection vulnerabilities exist in multiple widget files in AlienVault OSSIM and USM before 5.3.2. These vulnerabilities allow arbitrary PHP code execution via magic methods in included classes.

Frequently asked questions

What is CVE-2016-8580?: PHP object injection vulnerabilities exist in multiple widget files in AlienVault OSSIM and USM before 5.3.2. These vulnerabilities allow arbitrary PHP code execution via magic methods in included classes.
How severe is CVE-2016-8580?: CVE-2016-8580 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-8580 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-8580?: CVE-2016-8580 primarily affects Alienvault Open Source Security Information And Event Management. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-8580?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-8580 published?: CVE-2016-8580 was published on 2016-10-28 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:alienvault:open_source_security_information_and_event_management:*:*:*:*:*:*:*:*
cpe:2.3:a:alienvault:unified_security_management:*:*:*:*:*:*:*:*

More vulnerabilities in Alienvault Open Source Security Information And Event Management

CVE-2016-8582 — Critical (CVSS 9.8): A vulnerability exists in gauge.php of AlienVault OSSIM and USM before 5.3.2 that allows an attacker to execute an…
CVE-2016-8583 — Medium (CVSS 6.1): Multiple GET parameters in the vulnerability scan scheduler of AlienVault OSSIM and USM before 5.3.2 are vulnerable to…
CVE-2016-8581 — Medium (CVSS 6.1): A persistent XSS vulnerability exists in the User-Agent header of the login process of AlienVault OSSIM and USM before…
CVE-2016-6913 — Medium (CVSS 5.4): Cross-site scripting (XSS) vulnerability in AlienVault OSSIM before 5.3 and USM before 5.3 allows remote attackers to…

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