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GreyNoise reports that a single malicious cyber actor, tracked since 7 May 2026, is a suspected Chinese speaker working in UTC+8 and is the same as or related to Red Heron (reported by Acronis), based on the shared C2 domain, malware family, Gitea exploitation and other TTPs. The actor exploited the wp2shell WordPress chain (CVE-2026-6303…
GreyNoise reports that on 31 August 2026 a likely Russian-speaking malicious cyber actor used 45.142.193.132 and AI to develop, test and deploy exploits for PaperCut NG/MF (CVE-2026-81578 and CVE-2026-82078). Using hundreds of AI agents built on OpenAI's Codex harness, a DeepSeek model and public offensive security tools, the actor compro…
GreyNoise observed automated scanners impersonating the web crawlers of OpenAI, Anthropic, Google, Perplexity, DeepSeek and Amazon while requesting environment files, cloud access keys, private keys and password stores. A cluster of 13 forged AI crawler names from eight companies was seen; six names (belonging to Anthropic, OpenAI, Google…
GreyNoise reports a proxyjacking campaign by a malicious cyber actor (tracked as skynox7) that exploited network edge devices globally to covertly install Pawns.app proxyware and monetize victims' bandwidth. At least 143 devices in 34 countries were compromised, and the actor also appeared to target other DVR/NVR brands such as Hikvision …
On 24 September 2026, GreyNoise observed a malicious actor using 149.104.78.141 to attempt pre-disclosure zero-day exploitation of a Citrix NetScaler Gateway on a Project Swarm participant sensor. No CVE-specific detections existed at the time, but behavioral detections labeled the activity malicious within seconds. The attempt failed to …
GreyNoise observed an increase in scanning and exploitation attempts against Digital Video Recorders (DVRs) in Ukraine between 21 September and 1 October 2026, coinciding with an escalation in Russian strikes. Most of the activity targeted CVE-2021-36260, an unauthenticated command injection flaw in unpatched Hikvision products. GreyNoise…
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-14 based on evidence of active exploitation: CVE-2026-76461, a SQL injection vulnerability in Cisco Secure Email Gateway. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the f…
CISA added four vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-22, citing evidence of active exploitation. The entries affect Check Point (two flaws in multiple products), Arista VeloCloud Orchestrator and F5 BIG-IP APM. The alert gives no exploitation details, threat actor attribution or IOCs. CISA notes …
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-21 based on evidence of active exploitation: CVE-2026-7273, a stack-based buffer overflow in Zyxel GS1900 Series Switches. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the …
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-25 based on evidence of active exploitation: CVE-2026-87902, a remote file inclusion flaw in WordPress Core. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the federal enterp…
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-10-01, citing evidence of active exploitation: CVE-2026-104286, a path traversal flaw in Fortinet FortiMail. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the federal enterpris…
CISA issued an alert on exploitation of critical zero-day vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway, noting confirmed malicious activity involving at least some of them. The alert references Citrix bulletins for CVE-2026-107406, CVE-2026-88779 and CVE-2026-88771 through CVE-2026-88778. Because NetScaler updates can be …
CISA added two vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation: CVE-2026-96951, a command injection flaw in Microsoft Windows, and CVE-2026-104935, an authentication bypass by spoofing in Ivanti Connect Secure. CISA describes these vulnerability types as a frequent attack vecto…
CISA warns that threat actors are exploiting CVE-2026-104935, a zero-day authentication bypass in Ivanti Connect Secure that allows remote, unauthenticated execution of arbitrary commands. The activity is being used for credential theft and data exfiltration. CISA added the CVE to its Known Exploited Vulnerabilities (KEV) Catalog on Oct. …
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-10-04, citing evidence of active exploitation: CVE-2026-88779, an improper restriction of operations within the bounds of a memory buffer flaw in Citrix NetScaler. CISA describes this vulnerability type as a frequent attack vector for malicious cyber…
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-10-15, citing evidence of active exploitation: CVE-2026-21589, an Atlassian Multiple Products flaw in which files or directories are accessible to external parties. CISA describes this vulnerability type as a frequent attack vector for malicious cybe…
CISA announced the addition of four vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-10-14. The excerpt available does not name the CVEs, affected vendors or products, exploitation details, threat actor attribution or IOCs. The text focuses on Binding Operational Directive (BOD) 26-04: Prioritizing Security Upd…
CISA added two vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog on the basis of evidence of active exploitation: CVE-2025-61624, a path traversal flaw in multiple Fortinet products, and CVE-2026-102764, an authentication bypass by spoofing in BeyondTrust Remote Support. CISA describes these vulnerability types as a fre…
Researcher Harsh Jaiswal of Hacktron describes using the AI-assisted Hacktron CLI with a custom "JDBC driver pack" to audit decompiled JDBC drivers during a bug bounty event. The audit surfaced multiple vulnerabilities across vendor drivers, earning $85,000 in bounties. The headline finding is in the Databricks JDBC driver, where an attac…
Researcher Mohan Pedhapati of Hacktron ran an AI-driven audit against vinext, Cloudflare's Next.js reimplementation reportedly built in a week with AI assistance. The scan produced 45 findings, of which 24 were manually validated, including several Critical issues. The most serious bugs allow cross-user session data leakage, shared cache …
