Cyber Brief · Jun 30 · 12 stories
Tuesday, June 30, 2026 · sent to 1 subscribers
News
· The Hacker News · Jun 30
An unknown threat actor has been observed exploiting a recently disclosed maximum-severity security flaw in SimpleHelp to deliver two previously unreported malware families, TaskWeaver and Djinn Stealer.
The intrusion involves the exploitation of CVE-2026-48558 (CVSS score: 10.0), a critical authe…
News
· BleepingComputer · Jun 30
CISA confirmed on Monday that ransomware gangs are now exploiting a Microsoft Defender privilege escalation vulnerability, dubbed BlueHammer, that has previously been abused in zero-day attacks. [...]
News
· The Hacker News · Jun 30
A critical vulnerability in Progress Kemp LoadMaster can let an unauthenticated attacker execute arbitrary commands as root on the appliance by sending a crafted request to its API.
The flaw, tracked as CVE-2026-8037, carries a CVSS score of 9.8 according to ZDI. A patch is available. If…
News
· Help Net Security · Jun 30
Attackers are exploiting CVE-2026-48558, a recently patched authentication bypass vulnerability in SimpleHelp RMM, to drop the novel Djinn Stealer malware on victim computers. The malware is capable of targeting Windows, macOS, and Linux systems, and “collects credentials associated with clou…
Advisories
· CISA · Jun 29
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.
CVE-2026-48558 SimpleHelp Authentication Bypass Vulnerability
This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significan…
News
· BleepingComputer · Jun 29
Nissan is warning that it suffered a data breach affecting current and former employees after threat actors exploited an Oracle PeopleSoft vulnerability in data theft attacks previously linked to the ShinyHunters extortion group. [...]
News
· SecurityWeek · Jun 30
The threat actor is focused on collecting credentials, SSH keys, cryptocurrency wallets, and development tooling.
The post Critical SimpleHelp Vulnerability Exploited for Malware Delivery appeared first on SecurityWeek.
News
· SecurityWeek · Jun 30
The critical-severity defect allows unauthenticated attackers to take over the E-Business Suite’s Payments product.
The post Exploitation of Recent Oracle E-Business Suite Vulnerability Begins appeared first on SecurityWeek.
News
· InfoSecurity Magazine · Jun 29
An attacker has exploited a zero day in Oracle Peoplesoft to gain access to the IT systems of the NAIC, the standard-setting association for the US federal insurance system
News
· CyberScoop · Jun 30
From outsourced labor to tiered pricing models, an inside look at how today's top ransomware threats operate less like rogue hackers and more like Fortune 500 companies.
The post How ransomware syndicates weaponize corporate-style organization appeared first on CyberScoop.
News
· InfoSecurity Magazine · Jun 29
Experts warn the Jaguar Land Rover breach bears hallmarks of Kremlin-backed hackers, citing novel ransomware, strategic timing and efforts to obscure attribution
News
· CSO Online · Jun 26
Hackers are exploiting a critical vulnerability recently patched in PTC Windchill and FlexPLM, two product lifecycle management solutions used by organizations across a range of industries, including defense, aerospace, automotive, medical, electronics, industrial machinery, and consumer goods.
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