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Critical

Internet Explorer 8 and 9 Memory Corruption Vulnerability

IdentifiersCVE-2015-0044CWE-119

CVE-2015-0044 is a memory corruption vulnerability in Microsoft Internet Explorer 8 and 9. According to the provided content, a remote attacker can trigger the flaw by luring a user to a specially crafted web page. The issue is described by Microsoft as an "Internet Explorer Memory Corruption Vulnerability" and is distinct from CVE-2014-8967 and CVE-2015-0050. The underlying defect involves improper handling of objects in memory, which can result in memory corruption during webpage processing. Successful exploitation may allow arbitrary code execution in the context of the current user, or may cause a denial of service through browser instability or crash.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can allow remote code execution with the privileges of the currently logged-in user. If the user has administrative rights, the attacker may be able to fully compromise the affected system. In less privileged contexts, the attacker would gain the user's level of access. The vulnerability can also be used to cause denial of service via memory corruption leading to browser crash or instability.

Mitigation

If you can’t patch tonight, do this now.

No specific workaround or mitigating factor for the memory corruption vulnerabilities was identified in the provided content. General exposure reduction includes limiting use of affected Internet Explorer versions, operating users without administrative privileges, and reducing exposure to untrusted web content. On Windows Server platforms, Internet Explorer Enhanced Security Configuration reduces exposure to specially crafted web content, but this is not a complete fix.

Remediation

Patch, then assume compromise.

Apply Microsoft's Internet Explorer security update 3034682 that addresses this vulnerability by changing how Internet Explorer handles objects in memory. Based on the provided bulletin context, environments using Internet Explorer 9, 10, and 11 required both updates 3021952 and 3034196 for full protection; however, CVE-2015-0044 specifically affects Internet Explorer 8 and 9. Standard remediation is to deploy the relevant Microsoft security updates for the affected Internet Explorer versions on supported Windows platforms.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Microsoft CorporationInternet Explorerapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2015-0044
NVD
nvd.nist.gov/vuln/detail/CVE-2015-0044
MITRE CWE · CWE-119
cwe.mitre.org
securityfocus.com
securityfocus.com/bid/72414
securitytracker.com
securitytracker.com/id/1031723
docs.microsoft.com
docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-009