Loading vulnerability…
CVE-2019-0880 is a local elevation-of-privilege vulnerability in Microsoft splwow64.exe, the user-mode component used to broker certain printing operations between 32-bit and 64-bit contexts. The flaw is described as residing in how splwow64.exe handles certain calls. Available technical analysis indicates it is closely related to CVE-2020-0986 and occurs in the same GdiPrinterThunk code area, where attacker-controlled LPC request data can reach a fully controllable memcpy operation in a privileged target process. For CVE-2019-0880 specifically, exploitation reportedly used a different message type and a nearby handler in the same function family, but the underlying issue remained an arbitrary pointer dereference leading to attacker control over memcpy arguments. This made it possible for a less-privileged local process to corrupt memory in splwow64.exe and use that corruption to elevate privileges.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An earlier Windows splwow64 vulnerability exploited in the wild and presented as the near-identical predecessor to CVE-2020-0986.
A related in-the-wild zero-day in the same GdiPrinterThunk code path, described as a closely related variant involving a controllable memcpy call.
An elevation of privilege vulnerability in Microsoft splwow64.
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.