Severity: HighAction: Patch

Atlassian Patches Critical Vulnerability Affecting 8 Products

Unauthenticated attackers could exploit the flaw to access specific files in the web application root directory.

Excerpt from the primary source: SecurityWeek

Who is affected

Security professionals

What you should do · Patch

Apply the vendor's security update for the affected products. Check the linked advisory for affected and fixed versions, and put internet-facing systems first.

Automated guidance based on this story's classification. Check the linked advisories for specifics.

Sources

We link to original and authoritative sources. Headlines and excerpts belong to their publishers.

Original reporting

Atlassian Patches Critical Vulnerability Affecting 8 Products SecurityWeek · securityweek.com · Oct 7, 2026 · Primary source
Severity: HighAction: MitigateExploitation: ExploitedCISA KEV

Hitachi Energy SOI

View CSAF Summary Hitachi Energy is aware of RCE (Remote Code Execution) vulnerability in Apache ActiveMQ component of SOI product versions listed in this document. These vulnerabilities can be exploited to carry out various attacks affecting confidentiality, integrity, and availability of the product. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation. The…

Why it matters

CISA lists this as exploited in the wild. Unpatched ActiveMQ systems are exposed to active attacks now.

Mitigate

No complete fix is indicated yet.

Severity: HighAction: Review

Savannah lwIP SMTP client

View CSAF Summary Successful exploitation of this vulnerability could crash the device being accessed; a buffer overflow condition may allow remote code execution. The following versions of Savannah lwIP SMTP client are affected: lwIP SMTP client 2.2.1 (CVE-2026-15340) CVSS Vendor Equipment v3 9.8 Savannah lwIP SMTP client 1 Vulnerability Buffer Copy without Checking Size of Input ('Classic Buffer…