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eMudhra revokes eight more CA certificates after key handling flaws

eMudhra revokes eight more CA certificates after key handling flaws

eMudhra has revoked eight additional intermediate CA certificates after an investigation into its certificate security incident found improper handling of private keys during certificate generation. The new revocations bring the total affected intermediate CA certificates to 16, and the company says the incident also exposed an earlier warning sign that went unchecked for more than a year. Additional certificate revocations The newly revoked set consists of eight RSA intermediate CA…

Saugata Datta3 min read17
Windows 11 update tightens PowerShell script checks

Windows 11 update tightens PowerShell script checks

Microsoft’s November Patch Tuesday update KB5132061 adds stricter text-encoding validation for PowerShell script signing and signature verification. Older scripts that were signed before this change can fail if they contain invalid text encoding, including malformed UTF-8. PowerShell signing checks change in KB5132061 Microsoft released its November batch of Patch Tuesday updates earlier this week, bringing the usual security fixes and improvements to Windows 11. One change in the release notes…

Saugata Datta2 min read16
Windows SignDrop exploit exposes a local SYSTEM escalation claim

Windows SignDrop exploit exposes a local SYSTEM escalation claim

A public Windows exploit called SignDrop targets a security feature meant to stop attacks on the Common Log File System, or CLFS. It claims that a normal user account can be turned into a SYSTEM account, which is the highest level of control on Windows. The flaw has no CVE number and no patch as of November 11, 2026. Microsoft has also not confirmed the claims. SignDrop and its public…

Saugata Datta3 min read22
Microsoft fixes Exchange sign-ins broken by Windows Server updates

Microsoft fixes Exchange sign-ins broken by Windows Server updates

Microsoft has resolved Outlook sign-in and mail delivery problems on Exchange Server systems that appeared after the October 2026 Windows Server security updates. The issue affected some on-premises Exchange servers, and Microsoft said in mid-October that the impact varied by server load. Exchange sign-ins and mail flow after October updates Microsoft said the sign-in and mail delivery failures came from a new default memory limit for Endpoint Mapper when it…

Saugata Datta2 min read16
Cisco BroadWorks flaw enters CISA’s actively exploited catalog

Cisco BroadWorks flaw enters CISA’s actively exploited catalog

The US Cybersecurity and Infrastructure Security Agency has marked a high-severity Cisco BroadWorks vulnerability as actively exploited in attacks. Cisco BroadWorks is a cloud unified communications platform used by telecom carriers and managed service providers to offer branded cloud PBX, voice, and collaboration services to business customers. CISA’s new warning centers on CVE-2026-20320, which stems from improper restriction of an XML External Entity reference weakness in the Open Client Interface…

Saugata Datta2 min read16
Windows Remote Desktop flaws let attackers run code through client connections

Windows Remote Desktop flaws let attackers run code through client connections

Microsoft has released security updates for four Windows Remote Desktop Client vulnerabilities that can let attackers run code through network connections or local access. Published on November 10, 2026, the issues include memory handling errors and a race condition, and three of them use network attack paths while the fourth depends on existing local access. Affected Windows Remote Desktop clients Microsoft’s highest-scoring issue, CVE-2026-119934, has a CVSS score of 8.8…

Saugata Datta3 min read23
Git patches six flaws that can let malicious repositories run code

Git patches six flaws that can let malicious repositories run code

The Git project has patched six vulnerabilities, including a high-severity flaw that can let malicious repositories execute code during recursive cloning. The fixes were announced on November 10, 2026, and they cover unsafe file writes and memory corruption in merges, patches, and fast-import handling. Git vulnerability fixes roll out across release lines The patches ship in Git 2.56.1 and were also backported to 2.55.1, 2.54.1, 2.53.1, 2.52.1, 2.51.3, and 2.50.2.…

Saugata Datta3 min read18
Windows BitLocker flaws let attackers bypass device encryption

Windows BitLocker flaws let attackers bypass device encryption

Microsoft has disclosed two Windows BitLocker security feature bypass vulnerabilities that could let attackers with physical access weaken device protections. The issues are tracked as CVE-2026-97015 and CVE-2026-119832, and Microsoft rates both as Important. Physical access and privilege requirements CVE-2026-119832 can let a successful attacker bypass BitLocker Device Encryption on the system storage device and reach encrypted data. The attack requires physical access and basic user privileges, but it does…

Saugata Datta2 min read27
Claude Code helped reveal a hidden malware trigger in an AI model

Claude Code helped reveal a hidden malware trigger in an AI model

Microsoft researchers used Claude Code running Opus 4.5 to uncover the Lazarus backdoor technique, which can turn an otherwise capable AI model into a sleeper agent by changing fewer than 10 dormant neurons. The model can still pass standard evaluations and behave normally during routine tasks, and Microsoft said the finding exposes a gap for organizations that give AI agents access to terminals, files, and credentials. How Lazarus hides in…

Saugata Datta3 min read31
Nitori says a breach may have exposed 37.62 million records

Nitori says a breach may have exposed 37.62 million records

Nitori, a major Japanese furniture and home accessories retailer, says an unauthorized party may have obtained up to 37.62 million customer records from a system on its network. The company detected the intrusion on November 6 and blocked the access, but its investigation says the attacker may have been inside the system since mid-October. Company records and customer data Nitori, also called the “IKEA of Japan,” operates 879 stores in…

Saugata Datta2 min read21
OpenAI brings Francis Davidson in after buying Odessia

OpenAI brings Francis Davidson in after buying Odessia

OpenAI has acquired Odessia, an AI travel agent founded by Francis Davidson. Davidson says he is now working for OpenAI and helping the AI lab think about the future of travel. The company has not disclosed the deal terms, and the arrangement appears to be an acqui-hire. Odessia and its short life Davidson framed the transaction around the work he had done building Odessia through teams of AI agents. The…

Saugata Datta3 min read18
Fortinet patches expose multiple management and routing flaws

Fortinet patches expose multiple management and routing flaws

Fortinet has disclosed critical security flaws across FortiManager, FortiAnalyzer, and FortiOS. The issues include weaknesses that could let attackers execute code without logging in, and the disclosures say exposure depends on enabled features and network access. FortiManager and FortiAnalyzer exposure The highest-rated flaw is CVE-2026-126170, tracked as FG-IR-26-219. It has a CVSS score of 9.8 and involves JSON injection in the JSON-RPC API used by FortiManager and FortiAnalyzer. When the…

Saugata Datta3 min read30
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