Arbitrary DLL Load in Kingsoft WPS Office promecefpluginhost.exe
CVE-2024-7262 is an improper path validation vulnerability in promecefpluginhost.exe in Kingsoft WPS Office for Windows. Affected versions are 12.2.0.13110 through 12.2.0.16412, exclusive of 12.2.0.16412. Due to insufficient validation of a library path, an attacker can cause WPS Office to load an arbitrary Windows library. Public reporting states the issue was weaponized as a single-click exploit delivered via a deceptive spreadsheet document, and detection content associates exploitation with DLL hijacking behavior involving the WPS custom protocol handler. CISA has added the vulnerability to the KEV catalog, indicating active exploitation in the wild.
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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.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remote code execution (RCE) vulnerability in a popular productivity suite (identified in the content as WPS Office) that APT-C-60 allegedly exploited to gain initial execution and deploy the SpyGlace backdoor chain.
A zero-day vulnerability in WPS Office referenced as previously exploited by APT-C-60, indicating the actor has (or had) advanced exploitation capability beyond phishing/social engineering.
A vulnerability in Kingsoft WPS Office (Windows) where improper path validation in promecefpluginhost.exe can allow loading an arbitrary Windows library (DLL), enabling arbitrary code execution via a crafted document.
A WPS Office vulnerability that can be exploited via DLL hijacking (abusing the ksoqing custom protocol handler) leading to loading of a remote/malicious library by a WPS Office component.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.