29 Jun, 2026

Microsoft working on Defender patch for RoguePlanet zero-day

Microsoft confirmed that it’s working on a security patch for a Defender zero-day vulnerability named “RoguePlanet,” disclosed one week ago. The security researcher who published a RoguePlanet exploit during the June 2026 Patch Tuesday (known as Nightmare Eclipse) said it affects fully patched Windows 10 and Windows 11 devices and allows attackers to spawn command prompts with […]

2 mins read

Microsoft Defender ‘RoguePlanet’ zero-day grants SYSTEM privileges

A security researcher has released a new Microsoft Defender zero-day exploit named “RoguePlanet” just hours after Microsoft fixed two previously disclosed flaws during June 2026 Patch Tuesday. The researcher, known as Nightmare Eclipse, says the new vulnerability affects fully patched Windows 10 and Windows 11 devices, allowing attackers to spawn a command prompt with SYSTEM privileges via […]

4 mins read

Cisco warns of unpatched SD-WAN zero-day exploited in attacks

On Thursday, Cisco warned of a high-severity, unpatched zero-day in the Cisco Catalyst SD-WAN Manager (tracked as CVE-2026-20245) actively exploited in attacks enabling root privilege escalation. The zero-day flaw impacts all deployment types, including On-Prem Deployment, Cisco SD-WAN Cloud-Pro, Cisco SD-WAN Cloud (Cisco Managed), and Cisco SD-WAN for Government (FedRAMP). In a Thursday advisory, Cisco said the […]

3 mins read

Exploit released for new PinTheft Arch Linux root escalation flaw

A recently patched Linux privilege escalation vulnerability now has a publicly available proof-of-concept (PoC) exploit that allows local attackers to gain root privileges on Arch Linux systems. The vulnerability, named PinTheft by the V12 security team and still waiting to be assigned a CVE ID for easier tracking, exists in the Linux kernel’s RDS (Reliable […]

3 mins read

Exploit available for new DirtyDecrypt Linux root escalation flaw

A recently patched local privilege escalation vulnerability in the Linux kernel’s rxgk module now has a proof-of-concept exploit that allows attackers to gain root access on some Linux systems. Named DirtyDecrypt and also known as DirtyCBC, this security flaw was also autonomously found and reported by the V12 security team earlier this month, when the […]

2 mins read

New Fragnesia Linux flaw lets attackers gain root privileges

Linux distros are rolling out patches for a new high-severity kernel privilege escalation vulnerability that allows attackers to run malicious code as root. Known as Fragnasia and tracked as CVE-2026-46300, this security flaw stems from a logic bug in the Linux XFRM ESP-in-TCP subsystem that can enable unprivileged local attackers to gain root privileges by writing arbitrary bytes […]

3 mins read

New Linux ‘Dirty Frag’ zero-day gives root on all major distros

A new Linux zero-day exploit, named Dirty Frag, allows local attackers to gain root privileges on most major Linux distributions with a single command. Security researcher Hyunwoo Kim, who disclosed it earlier today and published a proof-of-concept (PoC) exploit, says this local privilege escalation was introduced roughly nine years ago in the Linux kernel’s algif_aead cryptographic algorithm interface. Dirty […]

3 mins read

CISA says ‘Copy Fail’ flaw now exploited to root Linux systems

CISA has warned that threat actors have started exploiting the “Copy Fail” Linux security vulnerability in the wild, one day after Theori researchers disclosed it and shared a proof-of-concept (PoC) exploit. Tracked as CVE-2026-31431, this security flaw was found in the Linux kernel’s algif_aead cryptographic algorithm interface and enables unprivileged local users to gain root privileges on unpatched […]

2 mins read

New Linux ‘Copy Fail’ flaw gives hackers root on major distros

An exploit has been published for a local privilege escalation vulnerability dubbed “Copy Fail” that impacts Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions. The vulnerability is tracked as CVE-2026-31431 and was discovered by the offensive security company Theori, using its AI-driven pentesting platform Xint Code after scaning the […]

3 mins read

CISA orders feds to patch BlueHammer flaw exploited as zero-day

CISA has given U.S. government agencies two weeks to secure their Windows systems against a Microsoft Defender privilege escalation vulnerability that has been exploited in zero-day attacks. Tracked as CVE-2026-33825, this high-severity security flaw allows low-privileged local threat actors to gain SYSTEM permissions on unpatched devices by exploiting an insufficient granularity of access control weakness. Microsoft patched […]

2 mins read