Researcher drops two more Microsoft Defender zero-days, all three now exploited in the wild 2026-04-17 at 14:32 By Zeljka Zorz The security researcher who earlier this month published a proof-of-concept (PoC) exploit for a zero-day privilege escalation vulnerability in Microsoft Defender is back with two more. The first, dubbed “RedSun,” is another privilege escalation flaw […]
Adobe issues emergency fix for Acrobat Reader flaw exploited in the wild (CVE-2026-34621) 2026-04-13 at 13:22 By Zeljka Zorz Adobe has pushed out an emergency security update for Adobe Acrobat Reader, patching a zero-day vulnerability (CVE-2026-34621) exploited in the wild since November 2025. About CVE-2026-34621 CVE-2026-34621 is a critical prototype pollution vulnerability – a type […]
Acrobat Reader zero-day exploited in the wild for many months 2026-04-09 at 15:44 By Zeljka Zorz Unknown attackers have exploited a zero-day Adobe Acrobat Reader vulnerability since November 2025 and possibly even earlier, security researcher Haifei Li has discovered. PDF files carry the exploit Haifei Li is one of the creators of EXPMON, a sandbox-based […]
Acrobat Reader zero-day exploited in the wild for many months Read More »
BlueHammer: Windows zero-day exploit leaked 2026-04-08 at 23:29 By Zeljka Zorz A buggy but functional proof-of-concept (PoC) exploit for an unpatched Windows local privilege escalation vulnerability dubbed BlueHammer has been published on GitHub by someone who goes by the handle Chaotic Eclipse and Nightmare Eclipse. Several security researchers have fixed the bugs in the exploit […]
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FortiClient EMS zero-day exploited, emergency hotfixes available (CVE-2026-35616) 2026-04-04 at 17:39 By Zeljka Zorz Defused Cyber has spotted a critical Fortinet FortiClient Endpoint Management Server (EMS) zero-day vulnerability (CVE-2026-35616) being exploited in the wild. This time around, the confirmation of active exploitation came almost immediately from Fortinet, as well. “Fortinet has observed [CVE-2026-35616] to be […]
FortiClient EMS zero-day exploited, emergency hotfixes available (CVE-2026-35616) Read More »
Google fixes Chrome zero-day with in-the-wild exploit (CVE-2026-5281) 2026-04-01 at 14:31 By Zeljka Zorz Google has fixed 21 vulnerabilities affecting its popular Chrome browser, among them a zero-day (CVE-2026-5281) with an in-the-wild exploit. About CVE-2026-5281 As per usual, information about the fixed zero-day is limited, and there’s no details about the exploit (or how/if it’s […]
Google fixes Chrome zero-day with in-the-wild exploit (CVE-2026-5281) Read More »
Cisco FMC flaw was exploited by Interlock weeks before patch (CVE-2026-20131) 2026-03-20 at 15:21 By Zeljka Zorz A critical vulnerability (CVE-2026-20131) in Cisco Secure Firewall Management Center (FMC) that Cisco disclosed and patched in early March 2026 has been exploited as a zero-day by the Interlock ransomware gang, Amazon CISO and VP of Security Engineering […]
Cisco FMC flaw was exploited by Interlock weeks before patch (CVE-2026-20131) Read More »
Threat actor leveraged Cisco SD-WAN zero-day since 2023 (CVE-2026-20127) 2026-02-25 at 19:04 By Zeljka Zorz A “highly sophisticated” cyber threat actor has been exploiting a zero-day authentication bypass vulnerability (CVE-2026-20127) in Cisco Catalyst SD-WAN Controller (formerly vSmart), Cisco has announced today. The vulnerability was reported by Australian Signals Directorate’s Australian Cyber Security Centre, who said […]
Threat actor leveraged Cisco SD-WAN zero-day since 2023 (CVE-2026-20127) Read More »
CISA flags exploited FileZen command injection bug, patch now! (CVE-2026-25108) 2026-02-25 at 12:14 By Zeljka Zorz CISA has added CVE-2026-25108, an OS command injection vulnerability in Soliton Systems’ FileZen secure file transfer solution, to its Known Exploited Vulnerabilities (KEV) catalog. The vendor has confirmed active exploitation, stating it has received multiple reports of damage caused […]
CISA flags exploited FileZen command injection bug, patch now! (CVE-2026-25108) Read More »
European Commission hit by cyberattackers targeting mobile management platform 2026-02-09 at 16:02 By Zeljka Zorz The European Commission’s mobile device management platform was hacked but the incident was swiftly contained and no compromise of mobile devices was detected, EU’s executive branch announced on Friday. The intrusion was detected on January 30, 2026, by CERT-EU, the […]
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Ivanti provides temporary patches for actively exploited EPMM zero-day (CVE-2026-1281) 2026-01-30 at 05:32 By Zeljka Zorz Ivanti has released provisional patches that fix two critical code injection vulnerabilities in Endpoint Manager Mobile (EPMM), one of which (CVE-2026-1281) has been exploited in zero-day attacks and has been added to CISA’s Known Exploited Vulnerabilities catalog. Investigating potential […]
Ivanti provides temporary patches for actively exploited EPMM zero-day (CVE-2026-1281) Read More »
Fortinet starts patching exploited FortiCloud SSO zero-day (CVE-2026-24858) 2026-01-28 at 02:21 By Zeljka Zorz Fortinet has begun releasing FortiOS versions that fix CVE-2026-24858, a critical zero-day vulnerability that allowed attackers to log into targeted organizations’ FortiGate firewalls. “This vulnerability was found being exploited in the wild by two malicious FortiCloud accounts, which were locked out […]
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Microsoft reveals actively exploited Office zero-day, provides emergency fix (CVE-2026-21509) 2026-01-27 at 11:22 By Zeljka Zorz Microsoft released emergency Office security updates to fix a security feature bypass vulnerability (CVE-2026-21509) that its threat intelligence and security teams spotted being exploited in the wild in zero-day attacks. Users and admins are advised to review the associated […]
Actively exploited SonicWall zero-day patched (CVE-2025-40602) 2025-12-17 at 18:46 By Zeljka Zorz SonicWall has patched a local privilege escalation vulnerability (CVE-2025-40602) affecting its Secure Mobile Access (SMA) 1000 appliances and is urging customers to apply the provided hotfix, as the flaw is being leveraged by attackers. “This vulnerability was reported to be leveraged in combination […]
Actively exploited SonicWall zero-day patched (CVE-2025-40602) Read More »
Update your Apple devices to fix actively exploited vulnerabilities! (CVE-2025-14174, CVE-2025-43529) 2025-12-15 at 12:58 By Zeljka Zorz Apple has issued security updates with fixes for two WebKit vulnerabilities (CVE-2025-14174, CVE-2025-43529) that have been exploited as zero-days. Several days before the release of these updates, Google fixed CVE-2025-14174 in the desktop version of Chrome, though at […]
Google fixes Android vulnerabilities “under targeted exploitation” (CVE-2025-48633, CVE-2025-48572) 2025-12-02 at 16:48 By Zeljka Zorz Google has shipped patches for 51 Android vulnerabilities, including two high-severity flaws (CVE-2025-48633, CVE-2025-48572) that “may be under limited, targeted exploitation”. According to the December Android security bulletin, both vulnerabilities affect the Android Framework, which is a collection of core […]
Google patches yet another exploited Chrome zero-day (CVE-2025-13223) 2025-11-18 at 14:13 By Zeljka Zorz Google has shipped an emergency fix for a Chrome vulnerability (CVE-2025-13223) reported as actively exploited in the wild by its Threat Analysis Group (TAG). About CVE-2025-13223 CVE-2025-13223 is a type confusion vulnerability in V8, the JavaScript and WebAssembly engine used by […]
Google patches yet another exploited Chrome zero-day (CVE-2025-13223) Read More »
CISA: Patch Samsung flaw exploited to deliver spyware (CVE-2025-21042) 2025-11-11 at 17:38 By Zeljka Zorz CISA has added CVE-2025-21042, a vulnerability affecting Samsung mobile devices, to its Known Exploited Vulnerabilities (KEV) catalog, and has ordered US federal civilian agencies to address it by the start of December. “This type of vulnerability is a frequent attack […]
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Attackers exploited another Gladinet Triofox zero-day (CVE-2025-12480) 2025-11-11 at 14:47 By Zeljka Zorz Attackers have exploited a now-fixed vulnerability (CVE-2025-12480) in the Gladinet Triofox secure file sharing and remote access platform while it was still a zero-day, Mandiant revealed on Monday. CVE-2025-12480 exploitation and attack details Gladinet’s Triofox solution is used by medium and large […]
Attackers exploited another Gladinet Triofox zero-day (CVE-2025-12480) Read More »
Italian-made spyware Dante linked to Chrome zero-day exploitation campaign 2025-10-28 at 16:28 By Zeljka Zorz CVE-2025-2783, a Chrome zero-day vulnerability that was detected being exploited in March 2025 and was subsequently fixed by Google, was used by unknown attackers to deliver LeetAgent, suspected commercial spyware. An analysis of the malware’s code and the campaign’s infrastructure […]
Italian-made spyware Dante linked to Chrome zero-day exploitation campaign Read More »