
2025 Microsoft MVR-2024 Q1/2/3/4/MVR | 2023 H1-4420. Vulnerability researcher @msftsecresponse,@Hacker0x01 and @intigriti,I like pwning,together we hit harder
Joined May 2022
- Tweets112
- Following192
- Followers395
- Likes559
Simon retweeted
Over the past several days, we have been listening to the conversation around coordinated disclosure and the relationship between security researchers and vendors. We recognize that this relationship is both critical and, at times, fragile. We deeply value the security community, and will continue to take your feedback seriously.
To be clear about our approach to legal matters, we have no intention to pursue action against individuals conducting or publishing their security research. When an individual breaks the law and engages in malicious activity causing real harm to our customers, we will work with law enforcement as appropriate.
We recognize the work that goes into researching and submitting a vulnerability. We are committed to approaching every interaction with transparency, clear communication, and professionalism. We continue to believe strongly in Coordinated Vulnerability Disclosure as the foundation for protecting customers and improving our products. Each year we process a high volume of vulnerability reports. That volume continues to grow and will continue with the rise of AI-enabled research. We acknowledge that some interactions have fallen short and are working to learn from them.
Many of us have experience on both sides of this work, as researchers reporting vulnerabilities and as responders triaging and assessing them. That perspective informs how we approach this feedback and the importance we place on getting it right, particularly as the volume and complexity of research continues to grow.
The security community plays a vital role in helping us protect customers. We are committed to maintaining a constructive and respectful relationship and growing together. We know that, given the nature of this work, there will at times be misunderstandings. We remain committed to engaging in good faith and to providing a respectful and professional experience for all researchers, regardless of past interactions.
Readers added context they thought people might want to know
The root of this statement is a post by a security researcher that stated MS revoked the access to their reporting account. When the researcher asked for explanation, his account got deleted. He got no answer. This escalated further by MS deleting the github account as well.
deadeclipse666.blogspot.com/2026/05/dear-m…
Simon retweeted
[POC2025] SPEAKER UPDATE
👥 Bocheng Xiang(@crispr_x) & HeeChan Kim(@heegong123) - "Follow the Link: Building Full-Chain Local Privilege Escalation on Windows"
#POC2025
Simon retweeted
Good Morning! Just published a blog post diving into Windows Kernel LFH exploitation in the latest Windows 24h2 build, Focusing on controlled allocations to achieve arbitrary read/write in the kernel.
r0keb.github.io/posts/Modern…
Simon retweeted
An analysis of CVE-2024-44236 - an RCE in macOS due to the lack of proper validation of “lutAToBType” and “lutBToAType” tag types. Read the details, see the source code review, and get detection guidance at zerodayinitiative.com/blog/2…
Simon retweeted
CVE-2024-43639: Remote Code Execution in Microsoft Windows KDC Proxy. The Trend Research Team dives deep into this bug to look at the root cause and complexities of exploitation. They also provide detection guidance. Read the details at zerodayinitiative.com/blog/2…
To help protect against NTLM relay attacks, we’ve enabled Extended Protection for Authentication (EPA) by default in Windows Server 2025. This update strengthens key services like Exchange Server, Active Directory Certificate Services (AD CS), and LDAP, making identity compromise and unauthorized access more difficult.
Learn more about these security improvements and how they can help protect your systems in our blog post: msrc.microsoft.com/blog/2024…
Simon retweeted

Nicolas Krassas@Dinosn25 Nov 2024
Switzerland
SwitzerlandConnected via Switzerland App StoreAccount-level information, not a live location or per-post device.
CVE-2024-11477: 7-Zip Vulnerability Allows Remote Code Execution securityonline.info/cve-2024…
Simon retweeted
PoC and wirte-up for CVE-2024-38200: Microsoft Office NTLMv2 Disclosure Vulnerability
github.com/passtheticket/CVE…
Patch: msrc.microsoft.com/update-gu…
Simon retweeted
Released a new version of OleViewDotNet (v1.14) on the PS gallery. A big change is better source code formatting for proxies and typelibs in IDL format rather than the old pseudo C# one. The video below also shows an example of dynamic parsing and display of source in the UI.
Simon retweeted
So @j00ru published two posts on Windows Registry; given that there were a lot of fixes in Windows Registry in recent months I expect these to be fun ;)
googleprojectzero.blogspot.c…
googleprojectzero.blogspot.c…
Simon retweeted
🚨 New advisory was just published! 🚨
A vulnerability in Windows’s File History Service allows local users to gain elevated privileges on the Windows operating system:
ssd-disclosure.com/ssd-advis…
Simon retweeted
Here is PoC for LPE in Windows Error Reporting Service CVE-2023-36874
github.com/Wh04m1001/CVE-202…
Simon retweeted

Nicolas Krassas@Dinosn30 Jun 2023
Switzerland
SwitzerlandConnected via Switzerland App StoreAccount-level information, not a live location or per-post device.
PoC released for Windows Common Log File System 0-Day (CVE-2023-28252) securityonline.info/poc-rele…
Simon retweeted
Malicious Microsoft Teams Invite: NTLM Relay and Drive By Download Attack buff.ly/42siu0j
Simon retweeted
My POC for CVE-2023-27363 is public right now. Nice Foxit PDF Reader RCE vulnerability, discovered by @rgod777 🫡, which was easier to build thanks to a previous research made by @bitshifter123 🫡 around XFA forms.
github.com/j00sean/SecBugs/t…
Simon retweeted
Here's the final write-up on the EoP vulnerability I've found in the Windows Installer service (CVE-2023-21800). I'm trying to explain the MSI's threat model, popular EoP primitives, the vulnerability itself, and some internals of the Redirection Guard.
blog.doyensec.com/2023/03/21…
Simon retweeted
Exploiting CVE-2023-23397: Microsoft Outlook Elevation of Privilege Vulnerability - MDSec mdsec.co.uk/2023/03/exploiti…
Simon retweeted
Our RPC toolkit was updated today with even more stuff from @nachoskrnl:
* a flowchart describing the various security protections that can stop a remote RPC request
* two new blog posts, one on RPC security and the other on Ben's LSM vulnerabilities
github.com/akamai/akamai-sec…
Simon retweeted
What were some of our top bugs from 2022? How many advisories did we publish? What types of vulns did we see? @dustin_childs has all this and more in his program recap of 2022. zerodayinitiative.com/blog/2… #Retrospective2022
Simon retweeted
MicrosoftEdgeUpdate DACL Privilege Escalation crbug.com/1332924

















