Tag: zero-day
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(g+) Cybersecurity: Wie eine Erpressergruppe reihenweise Peoplesoft-Systeme abräumt
Eine ungepatchte Peoplesoft-Lücke wird als Zero Day ausgenutzt, mit prominenten Opfern. Worauf Admins achten müssen. First seen on golem.de Jump to article: www.golem.de/news/cybersecurity-wie-eine-erpressergruppe-reihenweise-peoplesoft-systeme-abraeumt-2607-210692.html
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CISA Warns of Actively Exploited Joomla Zero-Day Vulnerabilities
Tags: attack, cisa, cvss, cybersecurity, exploit, flaw, infrastructure, kev, malicious, vulnerability, zero-dayThe U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added CVE-2026-48939 and CVE-2026-56291 to its Known Exploited Vulnerabilities (KEV) catalog after reports confirmed active zero-day attacks targeting the iCagenda and Balbooa extensions for Joomla. Both flaws carry the maximum CVSS severity score of 10.0 and can allow attackers to upload malicious files that ultimately lead to remote code execution. First seen on thecyberexpress.com Jump to article: thecyberexpress.com/cisa-cve-2026-48939-cve-2026-56291/
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iCagenda and Balbooa Forms Joomla Flaws Reportedly Exploited as Zero-Days
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two maximum-severity security flaws impacting iCagenda and Balbooa extensions for Joomla to its Known Exploited Vulnerabilities (KEV) catalog, following reports of zero-day exploitation in the wild.The vulnerabilities, both rated 10.0 on the CVSS scoring system, are below – CVE-2026-48939 – A vulnerability in the First…
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Microsoft patches RoguePlanet Defender zero-day vulnerability
Microsoft has released a security patch to address a Defender zero-day vulnerability known as “RoguePlanet,” disclosed after the June 2026 Patch Tuesday. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-patches-rogueplanet-defender-zero-day-vulnerability/
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The Anatomy of a Shadow AI Supply-Chain Breach: Lessons from the 2026 Vercel Incident
Vercel breach happened after an employee used an unvetted AI tool. Attackers exploited it as a trusted link to access systems, steal data, and extort $2M. The Vercel breach of April 2026 did not begin with a classic zero-day exploit, a misconfigured cloud bucket, or a sophisticated nation-state infrastructure implant. Instead, it unfolded when an…
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FortiBleed Actors Collaborating With Inc, Lynx Ransomware Gangs
After gaining a foothold in thousands of Fortinet firewalls, the attackers are starting to monetize that access, and are also piling on a Nextcloud zero-day bug. First seen on darkreading.com Jump to article: www.darkreading.com/threat-intelligence/fortibleed-actors-inc-lynx-ransomware-gangs
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FortiBleed Credential Theft Connected to INC and Lynx Ransomware
FortiBleed, the Fortinet credential theft campaign, is now connected to INC Ransom and Lynx, with a Nextcloud zero-day vulnerability also under investigation. First seen on hackread.com Jump to article: hackread.com/fortibleed-credential-theft-in-lynx-ransomware/
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FortiBleed campaign traced to INC and Lynx ransomware operations
Researchers are also investigating the role of a suspected zero-day vulnerability. First seen on cybersecuritydive.com Jump to article: www.cybersecuritydive.com/news/fortibleed-campaign-traced-to-inc-and-lynx-ransomware-operations/824348/
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Researcher Behind ‘Exploitarium’ Explains Release of Undisclosed Zero-Day Exploits
Infosecurity spoke with the researcher who dumped over 30 proof-of-concept exploits without disclosing the vulnerabilities first First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/researcher-exploitarium-exploits/
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CISA Warns BlueHammer Flaw Is Now Exploited in Ransomware Attacks
CISA confirms BlueHammer (CVE-2026-33825) is now used in ransomware attacks to gain SYSTEM privileges through Microsoft Defender. BlueHammer, tracked as CVE-2026-33825, has moved from proof-of-concept noise to real ransomware attacks in the wild, the US CISA confirms. BlueHammer allows attackers to escalate privileges locally in Microsoft Defender. The vulnerability, along with two other zero-days dubbed…
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Exploitarium: Anonymer Forscher leakt massenweise Zero-Day-Exploits
Ein öffentliches Github-Repository enthält 26 Exploits für Zero-Day-Lücken in mehreren populären Softwaretools. Und es werden immer mehr. First seen on golem.de Jump to article: www.golem.de/news/exploitarium-anonymer-forscher-leakt-massenweise-zero-day-exploits-2607-210388.html
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Anthropic buffa Library Zero-Day Lets Attackers Trigger Memory-Amplification DoS
Anthropic’s Rust-based protobuf library, buffa, has been discovered to have a zero-day memory amplification denial-of-service (DoS) vulnerability. This flaw allows attackers to deplete system memory using relatively small inputs. Endor Labs identified the issue through its AI-powered static application security testing (SAST) engine and is now tracked as CVE-2026-55407. This situation underscores how logic flaws…
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Anonymous researcher dumps zero-day exploits for multiple software products
First seen on scworld.com Jump to article: www.scworld.com/brief/anonymous-researcher-dumps-zero-day-exploits-for-multiple-software-products
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Nissan Traces Data Breach to PeopleSoft Zero-Day Exploit
Extortionists Add National Association of Insurance Commissioners to Breach List. Japanese automotive giant Nissan and the U.S. National Association of Insurance Commissioners are the latest organizations to confirm they fell victim to cyber extortionists who recently wielded a zero-day exploit against Oracle PeopleSoft, leading to the theft of data. First seen on govinfosecurity.com Jump to…
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Nissan Discloses Employee Data Breach Linked to Oracle Zero-Day
Nissan says employees’ data was stolen via the Oracle PeopleSoft zero-day campaign First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/nissan-oracle-peoplesoft-zero-day/
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Windows BlueHammer flaw now exploited by ransomware gangs
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. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/cisa-windows-bluehammer-flaw-now-exploited-by-ransomware-gangs/
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Nissan discloses employee data breach linked to Oracle zero-day attacks
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. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/nissan-discloses-employee-data-breach-linked-to-oracle-zero-day-attacks/
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NAIC says public data stolen in ShinyHunters’ PeopleSoft breach
The National Association of Insurance Commissioners (NAIC) says the ShinyHunters extortion group stole only publicly available data, outdated logs, and configuration files after breaching its systems by exploiting a zero-day vulnerability in an Oracle PeopleSoft server. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/naic-says-public-data-stolen-in-shinyhunters-peoplesoft-breach/
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US Federal Insurance Regulator Confirms Data Breach Via Oracle Flaw
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 First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/us-insurance-regulator-confirms/
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From mythos to reality: Why the 2026 state of pentesting report proves the need for programmatic defenses
AI can find zero-days in minutes. Your defense strategy must evolve now. First seen on cybersecuritydive.com Jump to article: www.cybersecuritydive.com/spons/from-mythos-to-reality-why-the-2026-state-of-pentesting-report-proves-the/823726/
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Zero-Day-Sicherheitslücke in Cisco-Catalyst-SD-WAN
Mandiant hat neue Forschungsergebnisse veröffentlicht, die detailliert beschreiben, wie ein Bedrohungsakteur eine inzwischen gepatchte Zero-Day-Sicherheitslücke in Cisco-Catalyst-SD-WAN (CVE-2026-20245) bei einem Kommunikationsdienstleister ausgenutzt hat, um die Rechte eines kompromittierten Administratorkontos auf vollständigen Root-Zugriff auszuweiten. Da diese Geräte den Datenverkehr innerhalb des Netzwerks steuern, könnte ein Angreifer mit Root-Rechten potenziell umfassende und unbemerkte Einblicke in den internen…
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CVE-2026-20245 Zero-Day Exploited in Cisco Catalyst SD-WAN Manager to Gain Root Access
A newly disclosed zero-day vulnerability, CVE-2026-20245, has been exploited by a threat actor targeting Cisco Catalyst SD-WAN Manager. By exploiting a flaw in the platform’s file to upload functionality, the threat actor escalated privileges from a compromised administrative account to root access and used extensive anti-forensic measures to erase evidence of the attack. First seen on thecyberexpress.com Jump to…
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Malicious hackers exploit Cisco zero-day for highest access level at communications service provider
Mandiant detailed the incident in a blog post Wednesday, but it’s unclear who was behind it or if they managed to get broad visibility into the victim’s internal traffic. First seen on cyberscoop.com Jump to article: cyberscoop.com/cisco-sd-wan-zero-day-exploit-communications-provider/
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Cisco Catalyst SD-WAN Zero-Day CVE-2026-20245 Exploited Months Before Disclosure
Hackers exploited Cisco Catalyst SD-WAN flaw CVE-2026-20245 as a zero-day months before disclosure, enabling privileged command execution. Google-owned Mandiant reported that an unknown threat actor exploited Cisco Catalyst SD-WAN vulnerability CVE-2026-20245 (CVSS base score of 7.8) as a zero-day at least two months before it was publicly disclosed. The flaw allows an authenticated attacker with…
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Mandiant reveals how Cisco SD-WAN zero-day attacks gained root access
New details have been revealed on how hackers exploited a Cisco Catalyst SD-WAN vulnerability tracked as CVE-2026-20245 in zero-day attacks to create rogue root accounts on targeted devices. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/mandiant-reveals-how-cisco-sd-wan-zero-day-attacks-gained-root-access/
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Cisco Catalyst SD-WAN Zero-Day CVE-2026-20245 Exploited to Gain Root Access
An unknown threat actor exploited a recently disclosed high-severity security flaw impacting Cisco Catalyst SD-WAN as a zero-day at least two months before it was publicly disclosed, according to new findings from Google-owned Mandiant.The vulnerability, tracked as CVE-2026-20245 (CVSS score: 7.8), allows an authenticated, local attacker to execute arbitrary commands with elevated privileges First seen…
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Five Eyes Agencies Warn AI Is Accelerating Cyber Threats and Zero-Day Exploitation
The Five Eyes cyber security agencies have issued a joint warning that artificial intelligence is rapidly accelerating cyber threats, including the exploitation of zero day vulnerabilities, and urged organizations to act immediately. In a statement released on June 22, 2026, senior leaders from agencies across the United States, United Kingdom, Canada, Australia, and New Zealand…
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No Zero-Day Tied to 80,000 Harvested Fortinet Credentials
Researchers and Vendor Both Cite Previously Leaked Credentials, Brute-Force Attacks. The FortiBleed campaign harvesting and selling working credentials for 80,000 Fortinet firewalls and SSL-VPN gateways doesn’t appear to tie to a zero-day exploit, but rather attackers reusing leaked credentials or brute-forcing systems with weak password hygiene, the vendor and experts said. First seen on govinfosecurity.com…
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(g+) Exchange OWA XSS: Angriff per Mail und ein Patch, der nicht alle erreicht
Ein aktiv ausgenutzter Zero-Day in Exchange OWA ist gepatcht, für 2016 und 2019 aber nur gegen Aufpreis. Was zu tun ist. First seen on golem.de Jump to article: www.golem.de/news/exchange-owa-xss-angriff-per-mail-und-ein-patch-der-nicht-alle-erreicht-2606-209967.html
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AI-Driven Threats, Zero-Days, and Data Breaches Define This Week in Cybersecurity for June 2026
Weekly summary of Cybersecurity Insider newsletters First seen on esecurityplanet.com Jump to article: www.esecurityplanet.com/weekly-roundup/ai-driven-threats-zero-days-and-data-breaches-define-this-week-in-cybersecurity-for-june-2026/