ZeroHour
DashboardNewsCVEsExploitsIncidentsAIBriefAnalyticsEntitiesWatchlistIOCsAsk the feedSourcesFeeds & APIKiosk mode

Source: GBHackers

3 stories in the last 3d

Sortlatesthotimportance
DomainAllCyberAIWindow24h3d7d30dAllIn the wildImportant onlyShow duplicates
CategoryAllIndustry 7Exploit / PoC 6Malware 4Vulnerability 3Threat actor 3Research 2Tools 2Phishing & fraud 1Policy & legal 1
SeverityAllcritical 3high 11medium 5low 0info 10source: GBHackers ✕

Hackers Exploit Critical Cisco Secure Email Gateway Flaw to Execute Commands as Root

Cisco patched critical unauthenticated SQL injection CVE-2026-76461 (CVSS 9.8) in Secure Email Gateway enabling root command execution, with malicious activity already detected.

Cisco disclosed CVE-2026-76461, a critical SQL injection (CVSS 9.8) in Cisco Secure Email Gateway appliances running AsyncOS, letting unauthenticated remote attackers execute arbitrary commands as root via crafted emails containing malicious SQL statements. Cisco detected malicious activity and directly contacted Secure Email Cloud customers, indicating active exploitation. No workaround exists; fixed releases are AsyncOS 15.5.5-0141, 16.0.4-3021, and 16.5.0-780, with migration to 16.5.0-780 advised. Secure Email and Web Manager and Secure Web Appliance are not affected.

GBHackersupdated · 1h agofirst · 17h agoExploit / PoC in the wild 15 sourcesCVE-2026-76461

Marimo RCE Flaw Lets Hackers Steal AWS Credentials and Pivot to Bastion Host in 8 Seconds

Attacker exploited unauthenticated marimo WebSocket RCE CVE-2026-39987 to steal AWS credentials and SSH into a bastion host in eight seconds.

Sysdig Threat Research Team documented a real intrusion exploiting CVE-2026-39987 in marimo (versions up to 0.20.4, fixed in 0.23.0), where the unauthenticated /terminal/ws WebSocket endpoint exposed an interactive shell. Within eight seconds the attacker pulled AWS credentials from Redis, extracted an SSH private key from AWS Secrets Manager via Boto3, and authenticated to a bastion host; over nine hours the operator ran 850+ commands using a staged custom Python toolkit. Blocked EC2 Instance Connect attempts (SendSSHPublicKey to placeholder instance i-0000000000000000) provide a high-confidence detection signal.

GBHackersupdated · 10h agofirst · 12h agoExploit / PoC in the wild 4 sourcesCVE-2026-39987

Red Heron Hackers Exploit Critical Gitea RCE to Steal Source Code and Deploy Linux Rootkit

PRC-linked Red Heron exploits critical Gitea RCE CVE-2026-60004 to steal source code and deploy JITTERLY implant with SIXZUT LD_PRELOAD rootkit; victims span five countries.

Acronis Threat Research Unit attributes a campaign to Chinese-speaking threat actor Red Heron, which weaponized CVE-2026-60004, a CVSS 9.8 RCE in Gitea versions 1.17 through 1.27.0, patched in 1.27.1 on July 27, 2026. The actor built an automated exploitation framework after a public PoC appeared, scanned 1,386 internet-exposed Gitea instances across seven countries, and separately listed 477 Taiwan-based systems across defense, energy, elections, and AI sectors. Confirmed victims include organizations in Canada, Argentina, Taiwan, the US, and Sri Lanka, with a Canadian renewable-energy firm hit in 22 sessions and a Taiwanese industrial automation firm losing hundreds of repositories including SCADA/HMI tools. Red Heron deploys the JITTERLY Linux implant (30+ commands, AES-128-GCM, Adaptix-like protocol) and the SIXZUT LD_PRELOAD rootkit disguised as libglthread.so.2, and moved laterally into a Synology/Proxmox environment to steal VM backups.

GBHackers · 10h agoThreat actor in the wild 3 sourcesCVE-2026-60004