CISA switched its coordinated disclosure platform on 17 September. TLP marking, a 45-day clock, sanctions screening: the rules are written.
Vulnerabilities & Alerts, Compliance & Standards
VINCE-NT replaces VINCE: what the switch changes
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Compliance & Standards, Projects & Governance
The ANSSI investigation guidance, read with SIM3
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France’s ANSSI has published five incident investigation strategies. The SIM3 maturity model measures which ones a team can actually run.
CTI & OSINT, Vulnerabilities & Alerts
Oracle’s September 2026 CSPU: 673 security patches
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Oracle released 673 security patches on 15 September 2026, 247 of them for vulnerabilities that are remotely exploitable without authentication. Six carry the maximum score of 10.0, five of those in Fusion Middleware. TLP:CLEAR PAP:CLEAR Unlimited disclosure, no restriction on use. Published 16 September 2026 Subject Oracle, September 2026 CSPU Distribution Public Confidence…
Practical Cybersecurity, Projects & Governance
Three days to patch: what the data actually says about AI-accelerated exploitation
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CISA justifies its new directive and its three-day deadline by pointing to AI-accelerated exploitation. Tested against the two public datasets available, that justification holds on one indicator and gives way on the others.
CTI & OSINT, Practical Cybersecurity
Active Directory: the 2026 revision of the CISA guide
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Eighteen Active Directory compromise techniques, their Windows event identifiers, and the logging plan that has to come first.
Compliance & Standards, Projects & Governance
RFC 2350: describing your CSIRT in seven parts
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Published in 1998 and never replaced, RFC 2350 describes an incident response team in seven parts. What it demands, what has aged, how to write one.
Compliance & Standards, Projects & Governance
SIM3 v2 interim: 45 parameters to raise your maturity
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SIM3 v2 interim measures a team over 45 parameters and 5 levels. Free for internal use, tooled online, and soon extended to SOCs and PSIRTs
Vulnerabilities & Alerts
SQL injection exploited in Cisco Secure Email Gateway
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Cisco has published an unauthenticated SQL injection in Secure Email Gateway, already exploited. No workaround, and a second critical advisory the same day.
Vulnerabilities & Alerts
Six permission bypasses in Mistral Vibe
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HiddenLayer published six critical CVEs in Mistral’s coding agent. All target the same authorisation layer, and no fix has shipped.
CTI & OSINT
GreatXML: Technical and Defensive Analysis of a BitLocker Bypass via WinRE
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1. Executive summary GreatXML is a public proof-of-concept, released on 10 June 2026 by the researcher Nightmare Eclipse / Chaotic Eclipse / MSNightmare, claiming a BitLocker bypass. The technique abuses the Windows Recovery Environment (WinRE), the state left behind by Microsoft Defender’s Offline Scan feature, and the legitimate processing of unattended setup answer files (unattend.xml).…
CTI & OSINT, Vulnerabilities & Alerts
RoguePlanet: a new Microsoft Defender zero-day disclosed in the wake of Patch Tuesday
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RoguePlanet: a new Microsoft Defender zero-day disclosed in the wake of Patch Tuesday Threat Intelligence · Vulnerability June 10, 2026 · Marc-Frédéric Gomez · 6 min read Just hours after the June 2026 fixes shipped, the researcher Nightmare Eclipse published a new exploit targeting Microsoft Defender. It works against Windows systems that are already up…
Vulnerabilities & Alerts
Project Glasswing
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Artificial Intelligence — vulnerabilities-anthropic What the First Public Update on Claude Mythos Reveals Anthropic published on May 22, 2026 the results of the first month of its defensive initiative. More than 10,000 vulnerabilities of high or critical severity identified, a bottleneck that has shifted from detection to remediation, and an access strategy that draws a…
Open Source & Tools
Microsoft Patch Tuesday May 2026
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Patch Tuesday Analysis · May 2026 May 2026 Patch Tuesday: No Zero-Days for the First Time in 23 Months, but Three Unauthenticated 9.8 RCEs in the Queue Microsoft fixes 118 to 138 CVEs depending on methodology, including 16 critical, with no actively exploited or publicly disclosed vulnerability. First Patch Tuesday without a zero-day since June…
