CVE-2015-4523: Blue Coat Malware Analysis Appliance (MAA) before 4.2.5 and Malware Analyzer G2 allow remote attackers to bypa

Q: How do I fix CVE-2015-4523?

malware analysis appliance: upgrade to newer than 4.2; malware analyzer g2: upgrade to newer than 3.5. Exact commands for each OS are on this page.

Q: Is CVE-2015-4523 being exploited?

CVE-2015-4523 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-4523 affect?

CVE-2015-4523 affects malware analysis appliance, malware analyzer g2. Severity is critical (CVSS 9.3). 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 res

Q: How urgent is CVE-2015-4523?

Priority 60/100. Critical severity; EPSS top 9%: very likely to be exploited; Public exploit reference

This week

CRITICAL 9.3UPGRADEUPGRADE

CVE-2015-4523 is a critical-severity flaw (CVSS 9.3) affecting malware analysis appliance, malware analyzer g2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
EPSS top 9%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.3 (Critical)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	4.5% (top 9%)
CISA exploited list	No
Weakness	CWE-264
Published	2017-09-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: symantec

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-09-11 17:29 UTCPublished CVE record published
2026-06-17 00:27 UTCUpdated Record last modified

symantec malware analysis appliance UPGRADE

Affected: <= 4.2

Fixed in: newer than 4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy malware-analysis-appliance || rpm -q malware-analysis-appliance || malware-analysis-appliance --version

2. UPGRADE to newer than 4.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade malware-analysis-appliance

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade malware-analysis-appliance

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

symantec malware analyzer g2 UPGRADE

Affected: <= 3.5

Fixed in: newer than 3.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy malware-analyzer-g2 || rpm -q malware-analyzer-g2 || malware-analyzer-g2 --version

2. UPGRADE to newer than 3.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade malware-analyzer-g2

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade malware-analyzer-g2

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Oracle VM VirtualBox 4.3.6 - 3D Acceleration Virtual Machine Escape (Metasploit)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-4523?

malware analysis appliance: upgrade to newer than 4.2; malware analyzer g2: upgrade to newer than 3.5. Exact commands for each OS are on this page.

Is CVE-2015-4523 being exploited?

CVE-2015-4523 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-4523 affect?

CVE-2015-4523 affects malware analysis appliance, malware analyzer g2. Severity is critical (CVSS 9.3). 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 res

How urgent is CVE-2015-4523?

Priority 60/100. Critical severity; EPSS top 9%: very likely to be exploited; Public exploit reference

Software pages

Symantec and Broadcom vulnerabilities

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References

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