Tag
#deserialization
13 posts tagged #deserialization.
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Field Note · Jun 5, 2026 · Colten Anderson
One cookie to your storefront homepage is shell. CVE-2026-45247 has a Saturday deadline.
An unauthenticated RCE in the Mirasvit Cache Warmer extension is already being hit at scale, and CISA's federal patch deadline is essentially now. If you run Magento, you act today.
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Analysis · May 20, 2026 · Colten Anderson
Adobe ColdFusion has been getting popped the same ways for 15 years
The KEV catalog holds a long run of ColdFusion bugs: deserialization RCEs, access-control bypasses, and file uploads, from 2013 to 2024. Different CVEs, same handful of weaknesses. If you still run internet-facing ColdFusion, you're operating a perennial target.
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Analysis · May 20, 2026 · Colten Anderson
Insecure deserialization isn't a Java problem. Ask Ruby's YAML.load.
CVE-2022-47986 is a pre-auth RCE in IBM Aspera Faspex from a single call to YAML.load on data an unauthenticated user controls. It's the Ruby version of the deserialization footgun, and ransomware crews used it to move onto Linux.
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Analysis · May 20, 2026 · Colten Anderson
The same handful of mechanisms account for most of the catalog
After the marquee bugs, Tier 1's remaining entries, DotNetNuke, ForgeRock, BQE, Sophos, Tomcat, Citrix ShareFile, SAP, Quest, Atlassian Crowd, Exim, Cisco ASA, Office, don't introduce new lessons. They confirm the few recurring mechanisms behind nearly every exploited vulnerability.
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Analysis · May 20, 2026 · Colten Anderson
The most dangerous server in the hospital is the one nobody can name
Mirth Connect moves patient records between systems and runs with high privileges, and a lot of installs sit on the open internet. CVE-2023-43208 is an unauthenticated RCE in it, and it's a patch bypass: the first fix used a denylist, and a researcher walked around it.
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Analysis · May 20, 2026 · Colten Anderson
The tool that audits everything runs as SYSTEM everywhere. That cuts both ways.
CVE-2022-31199 is unauthenticated RCE as SYSTEM in Netwrix Auditor, and it hits the server and the agents on every monitored system. Truebot used it. A privileged monitoring tool with agents across your estate is a shadow administration layer, and a force multiplier when it's compromised.
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Analysis · May 20, 2026 · Colten Anderson
Sitecore CVE-2021-42237: another .NET deserialization RCE in a CMS you forgot was internet-facing
CVE-2021-42237 is an insecure-deserialization RCE in Sitecore XP. It's the same .NET deserialization footgun that keeps showing up in enterprise web apps, on a CMS that often sits forgotten but internet-facing.
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Analysis · May 20, 2026 · Colten Anderson
The 2024–2026 enterprise-infra bugs, grouped by the mistake that caused them
Oracle WebLogic, SolarWinds Web Help Desk, Citrix Session Recording, Juniper ScreenOS, Outlook, VMware Aria, Brocade, Junos, and more. The recent enterprise-infrastructure entries reduce to the same familiar mechanisms, deserialization, planted credentials, document tricks, broken access control.
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Analysis · May 5, 2026 · Colten Anderson
Your firewall management console was the breach. Cisco FMC CVE-2026-20131.
CVSS 10.0 unauthenticated RCE in Cisco FMC was exploited as a zero-day for 36 days. Here's what the upgrade actually looks like.
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Analysis · May 5, 2026 · Colten Anderson
Exchange's deserialization problem didn't start in 2023. It still isn't fixed.
A ransomware group picked up a three-year-old Exchange RCE because scanning at scale still finds unpatched servers. The bug isn't the story. The patching economics are.
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Analysis · May 5, 2026 · Colten Anderson
GoAnywhere MFT gets its third critical RCE in three years
Storm-1175 was exploiting CVE-2025-10035 two days before Fortra even shipped the hotfix to customers. Under 24 hours from initial access to ransomware. GoAnywhere's third year in a row.
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Analysis · May 5, 2026 · Colten Anderson
React2Shell turned every Next.js App Router deployment into a pre-auth RCE target
Lachlan Davidson reported CVE-2025-55182 to Meta on a Friday. By the following Thursday, ransomware groups were deploying payloads within one minute of initial access. A 200-byte POST, CVSS 10, 137,000 exposed instances, and most developers never knew their frontend had server-side attack surface.
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Analysis · May 5, 2026 · Colten Anderson
The patch that wasn't: why SharePoint's fix needed a fix
CVE-2025-53770 bypassed Microsoft's July patch for SharePoint within days. The problem isn't bugs. It's that incomplete fixes are a pattern, and patch compliance frameworks can't measure patch quality.