SANS Stormcast: Daily Cyber Security News

CVE-2024-40766: The Patch Fixed the Bug. Nobody Fixed the Configuration. https://isc.sans.edu/diary/CVE-2024-40766%3A%20The%20Patch%20Fixed%20the%20Bug.%20Nobody%20Fixed%20the%20Configuration./33094 libssh2 - Out-of-Bounds Write via Unchecked packet_length in transport.c https://www.vulncheck.com/advisories/libssh2-out-of-bounds-write-via-unchecked-packet-length-in-transport-c PixelSmash Critical...

Webshells Remain Popular https://isc.sans.edu/diary/Webshells%20Remain%20Popular/33096 Safer pull_request_target defaults for GitHub Actions checkout https://github.blog/changelog/2026-06-18-safer-pull_request_target-defaults-for-github-actions-checkout/ Private Access Control Tokens https://cloudflare.net/news/news-details/2026/Cloudflare-Collaborates-With-Leading-Browsers-to-Develop-a-Privacy-Fi...

eBanking Phishing Delivered Through IPv4-Mapped IPv6 Address https://isc.sans.edu/diary/eBanking%20Phishing%20Delivered%20Through%20IPv4-Mapped%20IPv6%20Address/33090 NGINX ngx_http_v3_module vulnerability CVE-2026-42530 https://my.f5.com/manage/s/article/K000161616 Squidbleed (CVE-2026-47729) https://blog.calif.io/p/squidbleed-cve-2026-47729 AMD will reinstate memory encryption on Ryzen 9000 CPUs...

The browser blind spot: Why your security tool may not be blocking what you think it is [Guest Diary] https://isc.sans.edu/diary/The%20browser%20blind%20spot%3A%20Why%20your%20security%20tool%20may%20not%20be%20blocking%20what%20you%20think%20it%20is%20%5BGuest%20Diary%5D/33084 Android 17 Security Patches https://source.android.com/docs/security/bulletin/android-17 Oracle Critical Security Patch U...

From a VHDX File to a Remcos RAT https://isc.sans.edu/diary/From%20a%20VHDX%20File%20to%20a%20Remcos%20RAT/33080 A backdoor in a LinkedIn job offer https://roman.pt/posts/linkedin-backdoor/ A 27-Year-Old Authentication Bypass in OpenBSD's PPP Stack https://blog.argus-systems.ai/blog/openbsd-pap-27-year-auth-bypass.html Copilot M365 Data Leakage https://www.varonis.com/blog/searchleak My Upcoming C...

Evil MSI Background: BASE64 Statistical Analysis https://isc.sans.edu/diary/Evil%20MSI%20Background%3A%20BASE64%20Statistical%20Analysis/33072 Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-arbfw-c2rZvQ TSME/SME not activating on Ryzen 7 9700X https://github.com/AMDESE/AMDSEV/issues/292 D...

Atomic Arch: Attackers Hijack Trusted AUR Packages to Deliver Rootkit-Like Malware https://www.sonatype.com/blog/atomic-arch-npm-campaign-adds-malicious-dependency Why Use App-Level Auth When Every Database Has Auth? (Splunk Enterprise CVE-2026-20253 Pre-Auth RCE) https://labs.watchtowr.com/why-use-app-level-auth-when-every-database-has-auth-splunk-enterprise-cve-2026-20253-pre-auth-rce/ A Fake Bu...

More Bitlocker Issues: GreatXML https://git.churchofmalware.org/Nightmare_Eclipse/GreatXML Security Advisory Ivanti Sentry (CVE-2026-10520, CVE-2026-10523) https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Sentry-CVE-2026-10520-CVE-2026-10523?language=en_US Oracle Security Alert Advisory - CVE-2026-35273 https://www.oracle.com/security-alerts/alert-cve-2026-35273.html https://www.bleepingc...

How has use of framing protection security headers changed in the past 3 years? https://isc.sans.edu/diary/How%20has%20use%20of%20framing%20protection%20security%20headers%20changed%20in%20the%20past%203%20years%3F/33068 Preparing for npm v12: install scripts and non-registry sources become opt-in https://github.com/orgs/community/discussions/198547 Adobe Patches https://helpx.adobe.com/security.h...

Microsoft June 2026 Patch Tuesday https://isc.sans.edu/diary/Microsoft%20June%202026%20Patch%20Tuesday/33064 Miasma Software Supply Chain Attack Toolkit Source Published https://safedep.io/inside-the-miasma-supply-chain-attack-toolkit/ Fortinet FortiSandbox Vulnerability https://fortiguard.fortinet.com/psirt/FG-IR-26-141 My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

Azure Functions Action and 72 Other Repositories Disabled After Supply Chain Attack https://www.stepsecurity.io/blog/miasma-worm-hits-microsoft-again-azure-functions-action-and-72-other-repositories-disabled-after-supply-chain-attack-targeting-ai-coding-agents Active Exploitation of Check Point VPN Authentication Bypass (CVE-2026-50751) https://blog.checkpoint.com/security/check-point-releases-imp...

The Evil MSI Background is Back! https://isc.sans.edu/diary/The%20Evil%20MSI%20Background%20is%20Back!/33054 The Smart TV in Your LivingRoom Is a Node in the AIScraping Economy https://blog.includesecurity.com/2026/06/the-smart-tv-in-your-livingroom-is-a-node-in-the-aiscraping-economy/ Brute force attack on Dashlane user accounts https://support.dashlane.com/hc/en-us/articles/36038764990866-Securi...

Microsoft's Coreutils for Windows https://isc.sans.edu/diary/Microsoft%27s%20Coreutils%20for%20Windows/33048 Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability CVE-2026-20230 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-ssrf-cXPnHcW Firmware Update for Acer Connect W6x Router https://community.acer.com/en/kb/articles/19672...

Continuing Scans for swagger.json https://isc.sans.edu/diary/Continuing+Scans+for+swaggerjson/33044/#comments Fake call detection on Android https://blog.google/security/android-fake-call-detection/ Anthropic's coordinated vulnerability disclosure dashboard https://red.anthropic.com/2026/cvd/ My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

New Wave Of Phishing Emails with SVG Files https://isc.sans.edu/diary/New%20Wave%20Of%20Phishing%20Emails%20with%20SVG%20Files/33040 Android 2026-06-01 security patch level vulnerability details https://source.android.com/docs/security/bulletin/2026/2026-06-01 Poly Voice Possible Remote Control of Certain Poly Devices CVE-2026-0826 https://support.hp.com/us-en/document/ish_15052661-15052687-16/hps...

Unidentified RAT pushes NetSupport RAT https://isc.sans.edu/diary/Unidentified%20RAT%20pushes%20NetSupport%20RAT/33034 CVE-2026-41089: Windows Netlogon Vulnerability Exploited https://ccb.belgium.be/advisories/warning-microsoft-patch-tuesday-may-2026-patches-118-vulnerabilities-16-critical-102 RedHat npm Packages Affected https://www.aikido.dev/blog/red-hat-npm-packages-compromised-credential-stea...

Announcing Bitskrieg https://deadeclipse666.blogspot.com/2026/05/announcing-bitskrieg.html Vulnerability in Gogs https://www.rapid7.com/blog/post/ve-authenticated-rce-via-argument-injection-gogs-unfixed/ Oracle Critical Security Patch Update Advisory - May 2026 https://www.oracle.com/security-alerts/cspumay2026.html GlobalProtect Authentication Bypass Vulnerabilities CVE-2026-0257 https://security...

Research Review Journal https://assets.contentstack.io/v3/assets/blt83c410d686aa5f84/blt3cff46f63887f83e/research-review-journal https://www.sans.edu/cyber-research Analysis of a Year of Files Uploaded to DShield Sensors https://isc.sans.edu/diary/Analysis%20of%20a%20Year%20of%20Files%20Uploaded%20to%20DShield%20Sensors/33026 The Word 'Toad' Gave Any Website Full Control of Chrome's Most Popular V...

Reconstructing an Akira Ransomware Kill Chain from Perimeter and Endpoint Logs https://isc.sans.edu/diary/Reconstructing%20an%20Akira%20Ransomware%20Kill%20Chain%20from%20Perimeter%20and%20Endpoint%20Logs/33024 Vaultjacking: One Captured PIN, the Entire Google Password Manager Vault https://phishu.net/blogs/blog-vaultjacking-phishing-the-google-password-manager-vault-in-the-phishu-framework.html F...

Possible ACR Stealer From Page Impersonating Claude https://isc.sans.edu/diary/Possible%20ACR%20Stealer%20From%20Page%20Impersonating%20Claude/33018 Microsoft SharePoint Remote Code Execution Vulnerability CVE-2026-45659 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45659 Multiple Vulnerabilities in Angular Language Service VS Code Extension https://github.com/angular/angular/secu...

Microsoft Access VBA https://isc.sans.edu/diary/Microsoft%20Access%20VBA/33012 An Example of Stack String in High Level Language https://isc.sans.edu/diary/An%20Example%20of%20Stack%20String%20in%20High%20Level%20Language/33008 Cross-Platform NPM Stealer https://isc.sans.edu/diary/Cross-Platform%20NPM%20Stealer/33006 Laravel Lang Compromised with RCE Backdoor Across https://socket.dev/blog/laravel...

Selective HTTP Proxying in Linux https://isc.sans.edu/diary/Selective%20HTTP%20Proxying%20in%20Linux/33002 Megalodon: Mass GitHub Repo Backdooring via CI Workflows https://safedep.io/megalodon-mass-github-repo-backdooring-ci-workflows/ MSFT Patches Recent Windows Defender Flaws CVE-2026-41091, CVE-2026-45498, CVE-2026-45584 https://x.com/fabian_bader/status/2057198207243804881 Cisco Secure Workloa...

GitHub Breach https://x.com/github/status/2056949168208552080 Agentic Threat Intelligence Feed - VS Code Extensions https://agentmesh.knostic.ai/extensions More NGINX Vulnerabilities https://x.com/nebusecurity/status/2057071579876753643 https://my.f5.com/manage/s/article/K000161307 Microsoft Publishes YellowKey Mitigation CVE-2026-45585 https://msrc.microsoft.com/update-guide/vulnerability/CVE-202...

TeamPCP Supply Chain Campaign: Activity Through 2026-05-17 https://isc.sans.edu/diary/TeamPCP%20Supply%20Chain%20Campaign%3A%20Activity%20Through%202026-05-17/32994 https://slsa.dev/spec/v0.1/levels Github Action Compromise https://www.stepsecurity.io/blog/actions-cool-issues-helper-github-action-compromised-all-tags-point-to-imposter-commit-that-exfiltrates-ci-cd-credentials How Storm-2949 turned...

New Malware Libraries means New Signatures https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20%20New%20Malware%20Libraries%20means%20New%20Signatures/32986 Addressing Exchange Server May 2026 vulnerability CVE-2026-42897 https://techcommunity.microsoft.com/blog/exchange/addressing-exchange-server-may-2026-vulnerability-cve-2026-42897/4518498 Microsoft Authenticator Update CVE-2026-41615 https://msrc...