Attackers Exploit AhsayCBS Flaws to Deploy XMRig Miners Disguised as Microsoft Edge
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Coverage
Wires & papers of record
- View CSAF Summary The following versions of Grid Protection Alliance openPDC and openHistorian are affected: openPDC <2.9.477, <2.9.482 (CVE-2026-104629, CVE-2026-100730, CVE-2026-105281, CVE-2026-85479, CVE-2026-101022) openPDC (Docker image) <2.9.477, <2.9.482 (CVE-2026-104629, CVE-2026-100730,…
Coverage
- Microsoft has pushed out an out-of-band security update for Exchange Server that fixes a high-severity vulnerability (CVE-2026-96940) that may allow authenticated attackers to read emails and attachments of other users in the same organization, but “does not allow access across tenant boundaries.”…
- CVE-2026-61500 allows attackers to recover the session-cookie signing key and gain administrative access and RCE. The post Exploitation Hits Rejetto HFS Vulnerability Discovered by AI appeared first on SecurityWeek .
- Hackers are actively scanning for a Rejetto HFS weak signing key vulnerability, tracked as CVE-2026-61500, that allows session forgery, account takeover, and remote code execution (RCE). [...]
- Attackers who know where to look can read files from Atlassian Data Center installations without logging in, the company has warned. About CVE-2026-21589 CVE-2026-21589, a critical arbitrary file access vulnerability with a 9.3 CVSS score, affects all versions of Bitbucket Data Center, Confluence…
- Atlassian is warning customers of a critical vulnerability, tracked as CVE-2026-21589, that can be exploited for arbitrary file-access in multiple self-hosted Data Center products, including Confluence, Jira, and Bitbucket. [...]
- Unauthenticated attackers could exploit the flaw to access specific files in the web application root directory. The post Atlassian Patches Critical Vulnerability Affecting 8 Products appeared first on SecurityWeek .
- A critical vulnerability (CVE-2026-21589) affecting multiple Atlassian product families, including Jira, Confluence, and Bitbucket, is being exploited in attacks that do not require authentication. [...]
- One day after Atlassian released patches fixing a critical arbitrary file access vulnerability (CVE-2026-21589) in its self-managed Data Center products, and a few hours after watchTowr researchers published a technical rundown of the flaw, attackers have been spotted attempting to exploit it.…
- A critical vulnerability affecting eight Atlassian products, including Jira and Confluence, is being exploited in the wild, said VulnCheck
- Threat actors have started targeting CVE-2026-21589, a critical vulnerability in Atlassian’s self-hosted Data Center products. The post Attackers Target Critical Atlassian Vulnerability Within Hours of PoC Publication appeared first on SecurityWeek .
- The security defect, tracked as CVE-2026-107406, could lead to remote code execution or denial-of-service. The post Citrix Urges Immediate Patching of Critical NetScaler Vulnerability appeared first on SecurityWeek .
- Citrix has warned IT administrators to patch systems immediately against a new critical vulnerability affecting NetScaler ADC networking appliances and NetScaler Gateway secure remote access solutions. [...]
- The flaws, CVE-2026-105133 and CVE-2026-105134, allow attackers to bypass authentication and inject OS commands. The post Unpatched AhsayCBS Vulnerabilities Exploited in the Wild appeared first on SecurityWeek .
More coverage
- A critical security flaw impacting Rejetto HTTP File Server (HFS) is witnessing active exploitation attempts, according to VulnCheck. The vulnerability in question is CVE-2026-61500 (CVSS score: 9.3), a case of session forgery stemming from the use of a weak pseudo-random number generator (PRNG)…
- Microsoft has released out-of-band security updates to address a high-severity flaw in Microsoft Exchange Server that could allow an attacker to escalate privileges under certain conditions. The vulnerability, tracked as CVE-2026-96940, is rated 8.8 on the CVSS scoring system. "Weak authorization…
- A critical flaw in 8 Atlassian Data Center products, which customers host themselves, allows an attacker with no login access to read specific files in each product's web application root directory. The attacker must already know a file's exact name and path and cannot list what the directory…
- Threat actors have begun to exploit a newly disclosed critical security flaw impacting Atlassian Data Center products that could allow access to sensitive files under certain conditions. The arbitrary file access flaw, tracked as CVE-2026-21589 (CVSS score: 9.3) affects multiple products,…
- Citrix has released patches for yet another critical security flaw impacting NetScaler ADC and NetScaler Gateway that could result in remote code execution or denial-of-service (DoS) under certain conditions. "CVE-2026-107406 is a memory overflow vulnerability that may lead to remote code…
- Threat actors have been observed exploiting two recently disclosed flaws in the AhsayCBS backup utility to seize control of affected devices and deploy web shells and XMRig cryptocurrency miners. Details of the flaws are below - CVE-2026-105133 (CVSS v4 score: 5.5) - An improper authentication…