Microsoft Update Tuesday November 2014: Fixes for 3 0

CVE-2014-4077 is an elevation-of-privilege flaw in the Japanese Input Method Editor (IME) that ships with Windows, involving the IME component IMJPDCT.EXE. The flaw is triggered on systems where the Japanese IME component is present (it is included by default with Windows, though disabled by default), and it allows an attacker who has already gained code execution in a sandboxed or low-privileged context to bypass that sandbox. Successful exploitation yields elevated privileges on the host, typically enabling full system control, and such local privilege escalation flaws are commonly chained with other vulnerabilities in malware and ransomware campaigns. Any Windows system carrying the Japanese IME is affected, with Japanese-locale environments being the most directly relevant deployments. CISA added the flaw to the Known Exploited Vulnerabilities catalog on 2022-05-25, confirming exploitation in the wild; EPSS estimates a ~55% probability of exploitation within 30 days (99th percentile), while no public proof-of-concept is known.

Do: Apply the Microsoft security updates released in the November 2014 Patch Tuesday cycle (MS14-071) that fix the Japanese IME vulnerability, per the CISA KEV required action to apply updates per vendor instructions. Prioritize user endpoints and shared systems where untrusted code runs, since a local sandbox escape here can lead to full host compromise and onward lateral movement in ransomware chains, and verify IMJPDCT.EXE/Japanese IME remediation to satisfy KEV compliance. As an interim mitigation, restrict execution of untrusted code on hosts pending patching, because exploitation requires an attacker to already have code running locally.

CVE-2014-4114 is a flaw in the Windows Object Linking & Embedding (OLE) component, categorized as improper input validation (CWE-20), that permits remote code execution when a user opens a file containing a specially crafted OLE object. It is triggered entirely through user interaction — opening a malicious document such as an Office/PowerPoint file with an embedded OLE object — with no prior authentication or network service exposed. A successful attacker gains code execution in the context of the logged-on user, enabling follow-on actions such as downloading payloads or moving laterally within an enterprise. All affected Windows releases are exposed; Microsoft addressed the flaw in its November 2014 security updates. Exploitation was observed in the wild by the Sandworm threat group using weaponized PowerPoint files, and the flaw carries a very high likelihood of exploitation (EPSS 81.6%, 100th percentile) and was added to CISA's Known Exploited Vulnerabilities catalog on 2022-03-03.

Do: Apply Microsoft's Windows OLE security update from the November 2014 release to all affected Windows hosts, per the CISA KEV required action; the CVSS score is not yet published, so treat this as high priority given the RCE impact. As interim mitigation, limit opening of untrusted Office files containing embedded OLE objects and consider restricting OLE object activation for files from the internet zone. For detection, check endpoints for suspicious outbound SMB connections initiated shortly after a user opens a PowerPoint/Office document, a pattern associated with Sandworm exploitation of this flaw.

CVE-2014-6332 is a memory-corruption flaw (CWE-119) in OleAut32.dll, the OLE Automation component shipped with Microsoft Windows, in which OLE automation arrays are mishandled, allowing out-of-bounds memory access. A remote attacker triggers it by luring a user to a crafted website whose script (typically executed through Internet Explorer) calls into the vulnerable OLE Automation code, corrupting memory on the victim machine. Successful exploitation yields remote code execution with the privileges of the logged-on user, generally giving the attacker full control of the workstation. Because OleAut32.dll is a core OS component, essentially every Windows client and server in circulation at the time was affected; Microsoft addressed it in the November 2014 security updates (MS14-064). The flaw is listed in CISA's Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating known in-the-wild exploitation, and EPSS assigns a 95% probability of exploitation within 30 days (100th percentile); no public PoC is tracked in the source data.

Do: Apply Microsoft's November 2014 Windows/OLE security updates (MS14-064) across all Windows clients and servers, prioritizing internet-facing systems and workstations used for web browsing, and confirm the patched OleAut32.dll is present via patch-management or vulnerability-scanner checks. Because the flaw is KEV-listed and exploitable in a drive-by web-attack scenario, treat any remaining unpatched Windows host as high risk and isolate legacy systems that cannot be updated.

CVE-2014-6352 is a code injection vulnerability (CWE-94) in the way Microsoft Windows processes Object Linking and Embedding (OLE) objects, the mechanism used to embed linked or embedded content such as links, charts, or multimedia inside documents. An attacker triggers the flaw by delivering a file containing a crafted OLE object — typically an Office document such as a presentation — and persuading a user to open it; successful exploitation allows the attacker to execute arbitrary code in the context of the logged-in user, potentially giving them control of the endpoint for data theft or as a foothold for lateral movement. The vulnerability affects Microsoft Windows systems for which Microsoft shipped fixes in its November 2014 updates, so any unpatched or legacy Windows client or server remains exposed. The flaw is listed in CISA's Known Exploited Vulnerabilities catalog (added 2022-02-25), confirming it has been used in real-world attacks, and its EPSS score of 77.6% places it in the top percentile for likely exploitation; no public proof-of-concept is recorded in the current data.

Do: Apply Microsoft's November 2014 security updates addressing this Windows OLE vulnerability across all Windows clients and servers per vendor instructions, prioritizing legacy and internet-reachable systems. Inventory the estate for missing patches, and in the interim restrict users from opening untrusted Office documents and email attachments, since exploitation requires the file to be opened. Track the CISA KEV required action and confirm remediation evidence for this entry.