CISA Adds Two Known Exploited Vulnerabilities to Catalog
CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-48356 Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability CVE-2026-111497 Google Brotli Unchecked Return Value Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant…
Summary from CISA Advisories.
Explained
The technology and terms in this story. Learn more
- ConceptKEV · Known Exploited Vulnerabilities catalogCISA's list of vulnerabilities with evidence of real-world exploitation.
- ConceptCISA · Cybersecurity and Infrastructure Security AgencyThe US government's cybersecurity agency, which issues alerts and runs the KEV catalog.
- ConceptExploitCode or a technique that turns a software flaw into something an attacker can actually use.
- ConceptCVE · Common Vulnerabilities and ExposuresThe public ID system for vulnerabilities, such as CVE-2026-12345, so everyone means the same bug.
Why it was possible
The weaknesses behind this story's CVEs, from each CVE Record.
- CWE-252Unchecked Return Value
- CWE-434Unrestricted Upload of File with Dangerous TypeUploads aren't restricted, so an attacker uploads a script (a web shell) and then requests it.
- CWE-787Out-of-bounds WriteData is written outside the memory it belongs to; the most common root cause of exploited memory bugs.
Vulnerabilities in this story
Severity and exploitation facts from NVD, FIRST, and CISA.
Related coverage
Other sources covering the same vulnerabilities or event.
SANS Stormcast Tuesday, October 27th, 2026: Apple Patches 304 Vulnerabilities Incl. Exploited CoreGraphics Flaw; Threat Hunting in DShield SIEM with ELK; .NET and PHP Brotli Fixes (CVE-2026-111497)
Podcast7 minSANS Internet Storm Center StormCast18h agoThreat IntelEndpointVulnerabilitiesCVE-2026-111497CVE-2026-28864+2