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…
The FBI, CISA, NSA, EPA, DOE, CNMF and Treasury warn of ongoing exploitation of internet-exposed PLCs by an Iranian-affiliated APT group, with activity observed since at least March 2026. Targets are Rockwell Automation/Allen-Bradley, Schneider Electric and Siemens PLCs in the Government Services and Facilities, Water and Wastewater Syste…
A multinational advisory (CISA, NSA, FBI, AIVD, MIVD, NCSC-UK and others) warns that the Russian state-supported APT LAUNDRY BEAR (aka Void Blizzard, TA488) has compromised Western government, defense industrial base and NGO organizations running Zimbra Collaboration Suite (ZCS) since at least July 2025. The campaign uses a view-based XSS…
A joint advisory (AA26-194a) from NSA, CISA, FBI, DC3 and 15 allied agencies warns that Russian FSB Center 16 cyber actors continue to opportunistically compromise poorly configured and vulnerable networking devices worldwide, primarily routers. The advisory builds on the FBI's August 2025 PSA on the decade-plus campaign and adds TTPs. Go…
The FBI, CISA, DC3, NSA, USSS and the Republic of Korea's KNPA issued joint advisory AA26-222A on Gunra ransomware. Gunra appeared in April 2025 as a double-extortion variant derived from the leaked Conti source code. It launched a structured RaaS affiliate program in January 2026, also operating under the alias Golden Community, and recr…
The NSA, CISA, FBI, DOE and EPA issued a joint advisory (AA26-231A) warning of an active threat to Siemens S7 Series PLCs in U.S. critical infrastructure. Unattributed threat actors are conducting reconnaissance and capability development against U.S.-based installations using AI-generated exploitation scripts disguised as legitimate OT m…
A joint advisory (AA26-281A) attributes China-based malicious cyber activity to Integrity Technology Group (Integrity Tech), a for-profit company with links to the Chinese government. The company builds and sells tools, hosts infrastructure and compromises networks worldwide. The actors' TTPs are consistent with Flax Typhoon, Ethereal Pan…
A joint StopRansomware advisory (AA26-293A) from the FBI, CISA, USSS, Germany's Landeskriminalamt Rheinland-Pfalz, the UK's National Crime Agency and the North West Regional Organised Crime Unit details SafePay ransomware activity observed through August 2026. SafePay has been highly active since August 2024 and was among the most active …