How severe is CVE-2015-4523?

CVE-2015-4523 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-4523 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-4523?

CVE-2015-4523 primarily affects Symantec Malware Analysis Appliance. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-4523?

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-2015-4523 published?

CVE-2015-4523 was published on 2017-09-11 and last updated on 2026-06-17.

CVE-2015-4523

CVE-2015-4523 is a critical-severity vulnerability in Symantec Malware Analysis Appliance with a CVSS 3.x base score of 9.3. 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-264.

Key facts

Severity: Critical (CVSS 3.x base score 9.3)
CVSS v2: 9.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Symantec Malware Analysis Appliance
Published: 2017-09-11
Last modified: 2026-06-17

Description

Blue Coat Malware Analysis Appliance (MAA) before 4.2.5 and Malware Analyzer G2 allow remote attackers to bypass a virtual machine protection mechanism and consequently write to arbitrary files, cause a denial of service (host reboot or reset to factory defaults), or execute arbitrary code via vectors related to saving files during analysis.

Frequently asked questions

What is CVE-2015-4523?: Blue Coat Malware Analysis Appliance (MAA) before 4.2.5 and Malware Analyzer G2 allow remote attackers to bypass a virtual machine protection mechanism and consequently write to arbitrary files, cause a denial of service (host reboot or reset to factory defaults), or execute arbitrary code via vectors related to saving files during analysis.
How severe is CVE-2015-4523?: CVE-2015-4523 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-4523 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-4523?: CVE-2015-4523 primarily affects Symantec Malware Analysis Appliance. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-4523?: 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-2015-4523 published?: CVE-2015-4523 was published on 2017-09-11 and last updated on 2026-06-17.

References

https://bto.bluecoat.com/security-advisory/sa97

Affected products (2)

cpe:2.3:a:symantec:malware_analysis_appliance:*:*:*:*:*:*:*:*
cpe:2.3:a:symantec:malware_analyzer_g2:*:*:*:*:*:*:*:*

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