Cyber Brief · Jun 27 · 12 stories
Saturday, June 27, 2026 · sent to 1 subscribers
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· The Hacker News · Jun 26
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a critical remote code execution vulnerability impacting PTC Windchill PDMlink and PTC FlexPLM enterprise Product Data Management (PDM) and Product Lifecycle Management (PLM) software to its Known Exploited Vulnerabi…
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· The Hacker News · Jun 26
DirtyClone is a new Linux kernel privilege escalation in the DirtyFrag family. JFrog Security Research published a working exploit walkthrough for the flaw on June 25, the first public demonstration for this variant.
Tracked as CVE-2026-43503 (CVSS 8.8), it lets a local user co…
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· The Hacker News · Jun 27
The Security Service of Ukraine (SSU) said it, together with the U.S. Federal Bureau of Investigation (FBI), uncovered a long-running campaign orchestrated by Russian intelligence services to break into the messaging accounts of government officials, military personnel, politicians, and activists i…
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· BleepingComputer · Jun 26
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is giving federal agencies until Sunday to patch a vulnerability in Cisco Unified Communications Manager Server that is being actively exploited. [...]
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· The Hacker News · Jun 26
A Chinese-speaking advanced persistent threat (APT) actor has been linked to a new custom backdoor called TinyRCT as part of cyber attacks aimed at government entities and critical infrastructure in Southeast Asia.
The activity, particularly aimed at state-owned enterprises in the energy and gover…
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· The Hacker News · Jun 26
A high-severity flaw in Amazon Q Developer let a malicious repository run commands and steal a developer's cloud credentials. The path was short: a developer opens the repo, trusts the workspace, and Amazon Q does the rest. Amazon has patched it.
Tracked as CVE-2026-12957 (CVSS 8.5), the…
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· 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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· BleepingComputer · Jun 27
An agentic coding tool tasked with cloning and setting up a seemingly benign GitHub repository could execute a malicious payload that remains invisible to security scanners, AI agents, and human reviewers. [...]
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· The Hacker News · Jun 27
OpenAI on Friday released three versions of GPT-5.6, called Sol, Terra, and Luna, as a limited preview to a small number of companies as part of an ongoing engagement with the U.S. government.
While Sol is the latest flagship model and the most powerful, Terra strikes a balance between efficiency …
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· The Hacker News · Jun 26
A flaw in the Linux kernel's traffic-control subsystem can let a local unprivileged user gain root on affected systems.
CVE-2026-46331, nicknamed "pedit COW," is an out-of-bounds write in the packet-editing action (act_pedit) that corrupts shared page-cache memory. A public, working exploit&n…
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· BleepingComputer · Jun 26
The FBI and CISA are warning that a phishing campaign targeting Signal users tied to Russian intelligence services has evolved to steal Signal Backup Recovery Keys, allowing attackers to access victims' historical messages. [...]
News
· The Hacker News · Jun 26
The FBI and CISA have updated their March warning about Russian intelligence phishing Signal accounts, and the operators have added a step: they now coax targets into handing over their Signal Backup Recovery Key.
Hand it over once, and the attacker can restore the account's backup, read…