Media Coverage

CERT Polska, the Polish Computer Emergency Response Team (CERT), warned that attackers have begun exploiting a critical vulnerability in Zimbra Collaboration Suite (ZCS). ZCS is a popular email and collaboration software suite used by hundreds of millions of people and organizations worldwide, including thousands of businesses and hundreds of government agencies. Internet security watchdog Shadowserver now tracks over 12,100 Zimbra servers exposed online, most of them in Europe (4,382) and Asia (4,492). However, there is no information on how many of them are honeypots or have already been patched against the CVE-2026-73570 security flaw.

The Dysphoria botnet has expanded into a major Internet of Things threat, with a new Shadowserver Special Report identifying approximately 296,000 compromised devices. The campaign targets exposed routers, gateways, IP cameras and other embedded Linux systems, converting poorly secured equipment into a distributed platform for DDoS attacks and increasingly, residential proxy and relay operations. Shadowserver’s new dataset indicates that the exposure is broader and provides defenders with a substantially larger remediation target. For network defenders, the Shadowserver Special Report is designed as a retrospective, high-value notification rather than a normal 24-hour daily report.

CISA confirmed today that ransomware gangs have begun abusing a high-severity Microsoft SharePoint remote code execution vulnerability, which has been flagged as actively exploited since early July. Tracked as CVE-2026-45659, this security flaw stems from a deserialization of untrusted data weakness and allows attackers with low privileges to execute arbitrary code on unpatched SharePoint servers. Internet security watchdog group Shadowserver currently tracks over 8,500 Microsoft SharePoint servers exposed online, with over 200 of them unpatched against the CVE-2026-45659 vulnerability.

Artificial intelligence is enabling 55 per cent of reported cybercrimes across Africa making attacks faster, more scalable, and increasingly difficult for victims and platforms to detect, according to INTERPOL’s African Cyberthreat Assessment Report 2026. The 40-page report draws on survey data from 36 African member countries and highlights a defining shift: cyber-criminality has evolved from isolated incidents into an industrialized, borderless ecosystem.

Key takeaways from VulnCheck’s analysis in the First Half of 2026 include: In the first half of 2026, 23.43% of KEVs showed evidence of exploitation on or before the day the CVE was published. A slight drop percentage wise from the 28.93% of KEVs we observed in 2025. At the same time, vulnerabilities appear to be being exploited faster, with the median time from CVE publication to KEV falling from 120 days in 2025 to 80 days during the first half of 2026. Exploitation activity early in the CVE lifecycle remained steady, with roughly 200 CVEs becoming exploited within 31 days in the first half of 2026. Early exploitation activity has not scaled at the same pace as CVE issuance. Content management systems remained the most targeted technology category, accounting for one-third of all KEVs, a more significant percentage of KEVs than we’ve seen historically.

During the first half of 2026, 79 unique sources were the first to report exploitation. The top six sources first to report include Patchstack (70 KEVs), CrowdSec (64 KEVs), ShadowServer (57 KEVs), VulnCheck (37 KEVs), Wordfence (20 KEVs), and CISA (19 KEVs).

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned Tuesday that attackers are actively exploiting three vulnerabilities to hack Internet-exposed on-premises SharePoint Server instances. These security flaws (tracked as CVE-2026-32201, CVE-2026-45659, and CVE-2026-56164) affect all supported self-hosted SharePoint Server versions, including SharePoint Server Subscription Edition. Internet security watchdog group Shadowserver currently tracks nearly 10,000 Internet-exposed Microsoft SharePoint servers, with over 800 of them unpatched against the CVE-2026-32201 and CVE-2026-45659 vulnerabilities.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered government agencies to patch an actively exploited maximum-severity flaw in the Adobe ColdFusion commercial web app development platform by Friday. The vulnerability (CVE-2026-48282) affects ColdFusion versions 2025.9, 2023.20, and earlier, and can be exploited by remote threat actors without privileges in low-complexity attacks to gain code execution on unpatched systems. Internet security watchdog group Shadowserver currently tracks nearly 800 Adobe ColdFusion instances exposed online, but there is no information on how many are honeypots or have been secured against attacks targeting the CVE-2026-48282 flaw.

The Federal Bureau of Investigation (FBI) said today it worked with industry partners to seize hundreds of domains associated with NetNut, a sprawling residential proxy service operated by the publicly-traded Israeli company Alarum Technologies [NASDAQ: ALAR]. The action comes roughly two weeks after KrebsOnSecurity published findings from multiple security firms connecting NetNut to the Popa botnet, a collection of at least two million devices that have been compromised by malicious software with little or no consent from victims.

Earlier today, NetNut’s homepage was replaced with a seizure notice from the FBI and the Internal Revenue Service Criminal Investigation division. The seizure notice thanked Google, Lumen, Shadowserver and other industry partners for their help in dismantling hundreds of domains tied to the Popa botnet, which experts say has long been synonymous with NetNut’s residential proxy infrastructure. In a blog post published today, the Google Threat Intelligence Group (GTIG) said NetNut’s proxy network is widely resold and white-labeled by a number of third-party proxy providers, and that its services are heavily sought out by cybercriminals seeking to obfuscate the source of their malicious traffic.

A critical unauthenticated vulnerability in Oracle E-Business Suite is now being actively exploited in the wild, with honeypot telemetry confirming real-world attack attempts over the weekend of June 27–28, 2026. The Flaw CVE-2026-46817 is a maximum-severity flaw residing in the File Transmission component of Oracle Payments, a core module within Oracle E-Business Suite (EBS). Honeypot data from the Shadowserver Foundation spanning May 30 to June 28, 2026, shows attack traffic distributed globally, with North America (193), Asia (181), Europe (53), South America (18), Africa (9), and Oceania (2) all registering hits on the final observation date.

Europol together with partners from across the globe today announces a landmark blow to cybercriminal networks as part of Operation Endgame, a sweeping international operation targeting the criminal infrastructure behind ransomware and malware like SocGholish, Amadey, and StealC. In coordinated actions over the past two weeks, key components of these malicious toolkits were dismantled as part of a public-private effort. The main common goal was to disrupt the “assembly lines” cybercriminals use to launch ransomware, financial fraud, and attacks on critical infrastructure. Crypto assets of criminal origin currently valued at over EUR 41 million (USD 47 million) were identified, flagged, and thereby restricted from use. Moreover, as many as 27 million stolen login credentials have been recovered as part of this operation.

Participating countries and agencies in the action week against the three botnets: Canada: Royal Canadian Mounted Police (RCMP), Denmark: Danish Police (Politi), Germany: Federal Criminal Police Office (BKA), Netherlands: National High Tech Crime Unit (NHCTU), United Kingdom: National Crime Agency (NCA), United States, Europol and Eurojust.

Private Partners: Microsoft, the Shadowserver Foundation, Registrar of Last Resort (RoLR), Proofpoint, IBM X-Force, Infoblox, NorthWave, Orange Cyberdefense, Bitdefender, Have I Been Pwned (HIBP), Spamhaus.