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Image from Zero Day Initiative for Pwn2Own Ireland 2026 - Day One Results
Zero Day InitiativeSecurity updates

Pwn2Own Ireland 2026 - Day One Results

Welcome to Day One of Pwn2Own Ireland 2026! Today, 21 entries took the Pwn2Own stage to target multiple categories - including multiple Samsung attempts and our first Pixel entry. Follow the action live! We’ll be posting real-time updates and results throughout the competition on our blog and across social media. Stay up to date by following us on Twitter, Mastodon, LinkedIn, and Bluesky, and join the conversation using #Pwn2Own Ireland and #P2OIreland for continuous coverage.  Here are the results of Day One: FAILURE - Unfortunately, Ikotas Labs, Inc. (@ikotas00) could not get their exploit of the Brother MFC-L8970CDWworking within the time allotted. Ikotas Labs, Inc. (@ikotas00) targeting the Brother printer
Image from Security Affairs for FBI Drops Accenture Contractor After Sensitive Data Breach
Security AffairsSecurity updates

FBI Drops Accenture Contractor After Sensitive Data Breach

Accenture lost an FBI contract after a missed security patch exposed sensitive employee data, raising serious concerns over operational security. The FBI pulled an Accenture contractor off its account on Monday, and the reason is almost mundane compared to the damage it caused. One update didn’t get installed on time. “The ‌Federal Bureau of Investigation […]
Image from The Hacker News for Google Pauses OSS Product Bug Bounty Rewards After Surge in Invalid Automated Reports
The Hacker NewsMalware & threats

Google Pauses OSS Product Bug Bounty Rewards After Surge in Invalid Automated Reports

Google has stopped accepting product vulnerability reports through its bug bounty program for its open-source software. The change, in effect since October 1, means researchers can no longer submit security flaws in the code of projects such as Go, Angular, and Protocol Buffers there for a reward. Reports about supply chain compromises are still accepted, and reports filed before October 1 are
Image from The Hacker News for Critical Atlassian Flaw Lets Unauthenticated Attackers Read Known Files Across 8 Products
The Hacker NewsSecurity updates

Critical Atlassian Flaw Lets Unauthenticated Attackers Read Known Files Across 8 Products

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 holds. Atlassian disclosed the flaw, CVE-2026-21589, on October 5, rated it 9.3 out of 10, and
Image from Security Affairs for ClingSTUN Linux Backdoor Abuses Public STUN Infrastructure
Security AffairsMalware & threats

ClingSTUN Linux Backdoor Abuses Public STUN Infrastructure

Fortinet details ClingSTUN, a Linux backdoor exploiting unpatched IoT devices and abusing public STUN servers to route traffic past NAT. FortiGuard Labs researchers spotted a Linux malware family they call ClingSTUN, and the name gives away its trick immediately. Instead of relying on a dedicated command server, the malicious code leans on STUN, the protocol […]
Image from Security Affairs for Anthropic Mythos Found A Bug in Rejetto HFS. Attackers Are Now Exploiting It.
Security AffairsSecurity updates

Anthropic Mythos Found A Bug in Rejetto HFS. Attackers Are Now Exploiting It.

AI-assisted research uncovered a critical Rejetto HFS flaw that enables authentication bypass and remote code execution, now exploited in the wild. A Rejetto HFS vulnerability, tracked as CVE-2026-61500 (CVSS score of 9.3), discovered with the help of the Anthropic Mythos AI model is now being exploited in the wild, turning an interesting security research experiment […]
Image from The Hacker News for Microsoft Exchange Flaw Lets Authenticated Attackers Read Other Users' Mailboxes
The Hacker NewsSecurity updates

Microsoft Exchange Flaw Lets Authenticated Attackers Read Other Users' Mailboxes

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 in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a
Image from Help Net Security for CISA flags new exploited NetScaler flaw as attackers crash appliances (CVE-2026-88779)
Help Net SecuritySecurity updates

CISA flags new exploited NetScaler flaw as attackers crash appliances (CVE-2026-88779)

CISA has added another Citrix NetScaler vulnerability to its Known Exploited Vulnerabilities catalog on Sunday: CVE-2026-88779, a memory overflow bug that may cripple vulnerable NetScaler ADCs and Gateways. “Citrix has observed targeted attacks on unmitigated NetScaler deployments which can lead to Denial of Service. If the condition is triggered repeatedly, the service may remain unavailable,” the vendor stated. “Our analysis indicates that this issue affects service availability, and we have not identified an impact on … More → The post CISA flags new exploited NetScaler flaw as attackers crash appliances (CVE-2026-88779) appeared first on Help Net Security.
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