Alexander Leonov @leonov_av
Vulnerability assessment, *nix security, compliance management, security automation avleonov.com Joined September 2011-
Tweets2K
-
Followers1K
-
Following371
-
Likes473
🚨 August #LinuxPatchWednesday: 867 vulns (455 in Kernel) - nearly 2× July. 1 exploited in the wild (#Chromium CVE-2025-6558). 72 with public exploits: #WordPress, #Kubernetes, #NVIDIA #ContainerToolkit, #PostgreSQL, #Kafka, #7Zip. ➡️ t.me/avleonovcom/15…
WinRAR RCE (CVE-2025-6218, CVE-2025-8088) has been exploited in phishing attacks by Paper Werewolf/GOFFEE and separately to deploy RomCom backdoors. #WinRAR #BiZone #ESET #RomCom #PaperWerewolf #GOFFEE ➡️ t.me/avleonovcom/15…
Statistics on 2024 trending vulnerabilities were featured in the OIC-CERT annual report. 🎉 I’m glad my work contributed to promoting #PTESC and #PositiveTechnologies among national CERTs and key decision-makers! 😉 #TrendVulns #OIC #OICCERT ➡️ t.me/avleonovcom/15…
August #Microsoft Patch Tuesday. A total of 132 vulnerabilities, 20 fewer than in July. Three are actively exploited, including two related to the trending #SharePoint "ToolShell" flaw, exploited since July 17. #Vulristics #PatchTuesday #Windows ➡️ t.me/avleonovcom/15…
July "In the Trend of VM" (# 18): vulnerabilities in Microsoft Windows and SharePoint. Two vulnerabilities this month. #TrendVulns #PositiveTechnologies #Microsoft #Windows #SharePoint #EyeSecurity #ToolShell #wuauserv #StorageSense ➡️ t.me/avleonovcom/15…
About the Elevation of Privilege in Windows Update Service (CVE-2025-48799) from July’s Microsoft Patch Tuesday. Researcher @filip_dragovic (Wh04m1001) published an exploit on July 8, the same day as the MSPT. #Microsoft #Windows #wuauserv #StorageSense ➡️ t.me/avleonovcom/15…
🆕 #Qualys has introduced #AgenticAI. Cyber Risk Agents not only detect issues and provide analytics, but also autonomously identify critical risks, prioritize them, and launch targeted remediation workflows. ➡️ t.me/avleonovcom/15…
🚨 CVE-2025-53770 ("ToolShell") - a critical RCE flaw in Microsoft SharePoint - is being actively exploited; public PoC released July 21. Patch immediately. #Microsoft #SharePoint #ToolShell #EyeSecurity ➡️ t.me/avleonovcom/15…
July "In the Trend of VM" (# 17): vulnerabilities in Microsoft Windows and Roundcube. A traditional monthly roundup. This time, only three trending vulnerabilities. 🙂 #TrendVulns #PositiveTechnologies #URLfile #SMB #Microsoft #Windows #Roundcube ➡️ t.me/avleonovcom/15…
🚨 CVE-2025-33053: RCE via .url files exploited in the wild since March by Stealth Falcon; Check Point dropped details on Patch Tuesday; exploits released on GitHub. #URLfile #CheckPoint #Microsoft #Windows #StealthFalcon #WebDAV ➡️ t.me/avleonovcom/15…
RCE in Roundcube (CVE-2025-49113): 10 years in the code, public exploit since June 5, real attacks confirmed. Patch now! #Roundcube #FearsOff ➡️ t.me/avleonovcom/15…
July Microsoft Patch Tuesday: 152 vulnerabilities — double June's count, including 15 added between the June and July MSPT. One exploited in the wild; one with a GitHub exploit. #Vulristics #PatchTuesday #Microsoft #Windows ➡️ t.me/avleonovcom/15…
CVE-2025-33073: Win SMB Client EoP vuln (SYSTEM via connection to malicious SMB server) - patch now, enforce SMB signing, public exploits out, not yet seen in the wild. #Microsoft #Windows #SMB #NTLMreflection #Kerberos #Synacktiv #RedTeamPentesting ➡️ t.me/avleonovcom/15…
June Linux Patch Wednesday: 598 vulnerabilities, including 355 in the Linux Kernel. Exploited in the wild: 3 (CISA KEV). Public exploits available for 40 (❗️) vulnerabilities. #LinuxPatchWednesday #Vulristics #Linux #Roundcube #libblockdev #Chromium ➡️ t.me/avleonovcom/15…
I added support for ALT Linux OVAL content in Linux Patch Wednesday. Now I track when specific CVEs were fixed in ALT Linux packages and take that into account when generating the monthly bulletins. #ALTLinux #LinuxPatchWednesday #OVAL ➡️ t.me/avleonovcom/15…
June Microsoft Patch Tuesday. A total of 81 vulnerabilities. Among them, 15 vulnerabilities were added between the May and June MSPT. There are 3 vulnerabilities with signs of exploitation in the wild. #Vulristics #PatchTuesday #Microsoft #Windows ➡️ t.me/avleonovcom/15…
About Elevation of Privilege - Microsoft DWM Core Library (CVE-2025-30400) vulnerability. There is currently one GitHub repository with a PoC, but its functionality is highly questionable. 🤔 #DWM #Microsoft #Windows ➡️ t.me/avleonovcom/15…
Sergey Soldatov @SVSoldatov
492 Followers 447 Following A failed artist and musician, all life have been working in infosecurity. All tweets are mine.
Palak_* @BlossomL93547
0 Followers 37 Following
Mugalla Joseph Joshua @JJ_Mugalla
215 Followers 812 Following B.A MSc Political Science. We can better our societies by innovation, humanism & knowledge. Founder at Mwafrika Kreatives. Polymath 🙂📚🧐
Mohammad Khadra @mhd_alkhadra
472 Followers 255 Following Founder | Tech Startup Mentor | CEO @ Algorizmi | AI Infrastructure | we help you deploy AI model fast , efficiently and on budget
BlackEnergy @1804ghostkage
61 Followers 281 Following does randomness actually exist? Regardless talk security to me. It helps with my endless pursuit of knowledge ; TVM Engineer #blacktech #BIC
RoseLynch @7Rg6PVn3u1G8Zyi
68 Followers 3K Following
Courtney Mack @CourtneyMa23894
2 Followers 173 Following Recruiting webshell engineers to penetrate websites, with a monthly salary of up to $100,000. If interested, please contact https://t.co/3F9uYPlbxt
Timur Gilmullin @TGilmullin
2 Followers 2 Following Software Engineering and Automatization Fuzzy Technologies Ln: https://t.co/FoDeISL2El Blog: https://t.co/N1UoHvVCue Code: https://t.co/rkTRwaXoac
ARPSyndicate - Cyber ... @arpsyndicate
524 Followers 296 Following A Global Cyber Intelligence Company with hyperspecialization in Information Discovery, Shadow IT & Vulnerability Intelligence
Tuğba Karakaya @suigeneris0606
111 Followers 266 Following İnsanın değeri, Kalbinin ağırlığı kadardır..♌️💛💙
анноупост @mynameunknwn
1 Followers 8 Following
JulietSidney @h754m7t39PLDc
64 Followers 1K Following
Ryel @RyelHunter
58 Followers 714 Following
Stampis @StampisE0yzT
144 Followers 7K Following
Tairroys @tairroys31118
115 Followers 6K Following
kgm @kgm_x_
0 Followers 15 Following
nkt @nkt44425152801
3 Followers 128 Following
Yhonatan Harari @YhonatanH28
4 Followers 143 Following
Graff @Graff_sv
12 Followers 137 Following
1xd_542586 @testtwit123fd
248 Followers 3K Following Head of Threat Intelligence Team | Security Analyst | APT | Malware Analysis | Global Security Market&Product, call me 1xd.
Reda @notr3da
10 Followers 202 Following
Juan Pablo Perata @cxzero
289 Followers 5K Following OSCP | Pentester | Bug Hunter | CTF player | Developer | Community
Matteo @Ma3621_
15 Followers 2K Following
cosy @cosy294
62 Followers 1K Following
raghavendran @rocki_89
366 Followers 5K Following
Katherine @Nableenau95T
163 Followers 2K Following
martha @martha703761174
0 Followers 151 Following
Tarneetysl @TarneetyslNGUi
42 Followers 1K Following
Shweta #savesoil @shweta_mpa
39 Followers 122 Following I am no one and nothing. I am here just for sometime, my existence will vanish when nature decides 🙏 Jai Gurudev🙏
m_belichenko @belichenko_m
2 Followers 153 Following
zr_live @zr_live
16 Followers 698 Following
Cristhian Castillo @ccastillo132
306 Followers 3K Following
✨_geeknik_//✨ @geeknik
21K Followers 7K Following Human Founder⇢Deep Fork Cyber. Fuzzing from kernelspace➠uncanny valley. Latest: CVE-2025-43202
SOC @SOC57685947
89 Followers 869 Following
Evgeny @Utochk0
17 Followers 299 Following
Bagus Andry @bgsndry
85 Followers 409 Following
audio_runx @AudioRunx
1 Followers 162 Following
mhamed @kingstdz
3 Followers 98 Following
Dmitry Astashonak @Astapus
12 Followers 95 Following
Daniel Bogosomething @BogoTheBlue
73 Followers 749 Following Blueteamer at heart. Head of Research @ Seemplicity. I mostly retweet stuff about infosec and sometimes try to be funny.
Dr. Anton Chuvakin @anton_chuvakin
41K Followers 9K Following Information security - #SIEM, #DFIR, #EDR formerly at Gartner! Now @GoogleCloud Office of the #CISO; host of @CloudSecPodcast https://t.co/VpKtfz8nXG
Dave Kennedy @HackingDave
223K Followers 6K Following Founder @Binary_Defense @TrustedSec Co-Owner https://t.co/HQC75WhdJh. @WeHackHealth Pod. God + Family/Hacker/CSO/USMC/Intel/Fitness. Make the world a better place.
Schneier Blog @schneierblog
143K Followers 0 Following Bruce Schneier is an internationally renowned security technologist and author. Described by The Economist as a "security guru"
Alexey Lukatsky @alukatsky
5K Followers 126 Following Специалист по кибербезопасности. 30 лет стажа. Спикер, писатель. Гораздо больше пишу в https://t.co/oMc8iBgS8w
@mikko @mikko
229K Followers 930 Following Researcher and a best-selling author. Keynote talks at RSA, Black Hat & DEF CON. TED Speaker. Chief Research Officer at WithSecure.
Timur Gilmullin @TGilmullin
2 Followers 2 Following Software Engineering and Automatization Fuzzy Technologies Ln: https://t.co/FoDeISL2El Blog: https://t.co/N1UoHvVCue Code: https://t.co/rkTRwaXoac
BESSEC @bessec_eng
4 Followers 41 Following from Ural with love about #cybersecurity, #criticalinfrastructure and #ICS, audits, #dataprivacy, cybersec management and consulting. The main blog in telegram
Bharat Jogi @jogibharat
112 Followers 267 Following
Tulsi Gabbard 🌺 @TulsiGabbard
3.8M Followers 1K Following Director of National Intelligence. Former Presidential candidate & Congresswoman. Soldier. NYT bestselling author. (Views do not reflect position of USG/DoD)
VMconf @VMconf
3 Followers 1 Following An international online event dedicated to Vulnerability Management
Boris Ryutin @dukebarman
2K Followers 848 Following Yet Another Security Engineers lead. Blizzard games fan. Tweets are my personal opinions. #fuzzing https://t.co/xPnADlwcMP
J. Michael Straczynsk... @straczynski
77K Followers 67 Following Official since 2011. No story ideas please. Other than for promotion and PR I'm not here a lot, mostly on Patreon, so posts there will get a faster reply
🥝🏳️🌈 Be... @gentilkiwi
62K Followers 286 Following A kiwi coding mimikatz & kekeo github: https://t.co/eS3LVgU6i0 Head of security services @banquedefrance Tweets are my own and not the views of my employer
AttackerKB @AttackerKb
918 Followers 15 Following Community-driven information, analysis, and discussion of vulnerabilities and threats. Part of the @Rapid7 family.
Artem Sinitsyn @ArtyomSinitsyn
615 Followers 267 Following Certified cybersecurity architect with 20 years in IT field | CISSP | CCSP | MCSE | Microsoft Alumni | Cybersecurity speaker & podcast host | ex-Microsoft MVP
BSides Ljubljana @BSidesLjubljana
1K Followers 366 Following :: Security #BSidesLjubljana event official account :: 27th of September 2024 | @muzej | https://t.co/dlJxZdtyC3 | 90% time @lowk3y does the tweeting :)
Greenbone AG @GreenboneEN
262 Followers 318 Following IT security vendor providing vulnerability management solutions to help companies achieve sustainable resilience. Find us at https://t.co/x9mrb8mbGd
Adrian Sanabria (@saw... @sawaba
9K Followers 2K Following 🎙️ Enterprise @secweekly Podcast, 🤝 Founder @bsidesknoxville, 🗣️ Faculty @IANS_Security, 🍳 Cooking, 🏎️ F1, ⛰️ Hiking
Georgia Weidman @georgiaweidman
36K Followers 8K Following Author: Penetration Testing Founder: @bulbsecurity & @shevirahsec Professor: @UMDGlobalCampus @SCSU & @purdueglobal
Evgeny Belenky @BelevgEvgeny
4K Followers 926 Following Community Management Consultant | #communitymanagement , #security , #infosec , #IT , #AI | Practice Thai in my free time
Marc Ruef 𖢥 @mruef
5K Followers 279 Following infosec researcher @scipag · lead architect @vuldb · lecturer @eth @fhhwz @hslu @ikf_lucerne · keynote speaker · book author 🐘 https://t.co/ilVrKNH5Jc
Marco Ermini @MarcoErmini
688 Followers 1K Following CISO @EQSGroup. PhD educated. Personal account, RTs are not emoluments.
barry young @barryfyoung
85 Followers 136 Following IT Professional for 19years. Specialising in Compliance , Privacy and Security
viktor_larionov @viktor_larionov
16 Followers 27 Following
CyberCentral @CyberCentralCon
2K Followers 2K Following CyberCentral is one of Europe's Most Exclusive Events focusing on technical presentation, workshops & #strategic discussions from #CISOs to #CyberCrime #Experts
Wallarm @wallarm
3K Followers 4K Following Wallarm is the fastest, easiest, most effective way to block API attacks in real-time
Kyle 'esSOBi' Stone @essobi
6K Followers 3K Following Hyperlexic Polymath Savant – GenTech / AI Consultant / CTO @ https://t.co/s7KzUOWpY5 — EX-Heroku Trust and Security. Language Model Expert. #RunLocal
Leigh-Anne Galloway @L_AGalloway
4K Followers 1K Following @paymentvillage lead, Director of Security Research, security @ https://t.co/xEW1ag9WDA art @ https://t.co/2XClvIwPV7
Gifts @GiftsUngiven
443 Followers 71 Following Web - Net - Hardware. Funemployed. In search of sunrise
₿asset @SymbianSyMoh
33K Followers 1K Following Chief Hacking Officer at @Seekurity, Cypherpunk, Coding, Analyzing, Reversing, Hacking, ₿uilding & βreaking since Y2K-1 (https://t.co/NDGFb1a66s, @OWASP, @S3Geeks)
DC7499 @DC7499
2K Followers 2 Following Our group are open to anyone who is willing to share their ideas and research results and for whom information security is not just a job, but a real passion.
Alex Bodryk @obodryk
655 Followers 48 Following - CISO for Global Managed Services @SAP-like company - Former Threat Intel Analyst @iSIGHT Partners - Former Head of Security Architecture @Fortune500
Andrey Prozorov @APr8020
227 Followers 306 Following CISM, CIPP/E, CDPSE, LA27001 | Advisor and Mentor | I create cybersecurity and privacy toolkits focusing on compliance #ISMS #ISO27001 #GDPR #ISO27701 #DORA
Nicholas Sciberras @nicksciberras
540 Followers 3K Following Principal Product Manager @ Invicti Security
Britto @brittocan
84 Followers 903 Following
Tiger Optics @TigerOptics
197 Followers 134 Following Дистрибьютор кибербезопасности. Читайте наш блог https://t.co/fW8weA7p8P
Roman Ilyin @romanilyin
104 Followers 106 Following Networwk security, Security Audit, Penetration tests, Consulting, Reverse Engeenering, Ethical hacking
Yev🇺🇦 @jerh17
5K Followers 2K Following CEO & Co-Founder @hackenclub, Blockchain Security & Compliance | Forbes 30 Under 30 | Ethical Hacker
@[email protected]... @benheise
6K Followers 2K Following Infinite Curiosity, limited time. Veteran. Creator of @rallysecurity. Views not those of my employer. he/him. @[email protected]
OSSEC Project @ossecproject
2K Followers 31 Following The official Twitter home for the OSSEC Project. OSSEC is an open source host-based intrusion detection system. Visit us at https://t.co/f9JFQIAWhM.
OWASP Poland @owasppoland
870 Followers 24 Following
Kafka Kommunikation @IT_KafkaPR
406 Followers 1K Following
Eleanor Dallaway @EleanorDallaway
17K Followers 1K Following Tech journalist.Founder: Assured Intelligence.Published:The Guardian,The Times,The Sunday Times,Infosecurity,Imbibe. Lover of weekends,travel, sunsets & my boysTrends for United States
You might like
