Daily Writeups
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Daily Writeups
⤷ Title: 4 Linux Kernel LPE Flaws Disclosed With Public PoC Exploits
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𐀪 Author: Do Son
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ⴵ Time: Fri, 18 Sep 2026 08:06:43 +0000
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⌗ Tags: #Vulnerability Report #CVE_2026_80844 #CVE_2026_81000 #DirtyAH6 #Linux Kernel #Local Privilege Escalation #privilege escalation #proof_of_concept
Daily CyberSecurity
4 Linux Kernel LPE Flaws Disclosed With Public PoC Exploits
TL;DR A researcher disclosed four Linux kernel privilege escalation flaws on September 18, 2026. Each one can give a local user root on affected systems. The full technical details and proof-of-co…
11 views
Daily Writeups
⤷ Title: Linux Kernel Vulnerabilities Exploited in the Wild
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𐀪 Author: Do Son
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ⴵ Time: Fri, 18 Sep 2026 15:57:48 +0000
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⌗ Tags: #Vulnerability Report #CISA KEV #CVE_2025_39964 #CVE_2026_53266 #Linux Kernel #privilege escalation
Daily CyberSecurity
Linux Kernel Vulnerabilities Exploited in the Wild
TL;DR CISA confirmed active attacks targeting two distinct Linux kernel flaws. The vulnerabilities involve race conditions in cryptographic sockets and memory corruption in network packet filters.…
37 views
Daily Writeups
⤷ Title: Weekly CVE Report: 4,378 New Flaws and 10 Exploited Bugs
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𐀪 Author: Do Son
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ⴵ Time: Mon, 21 Sep 2026 01:54:55 +0000
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⌗ Tags: #Weekly Recap #CISA KEV #Cisco ISE #Exploited Vulnerabilities #Linux Kernel #threat intelligence #vulnerability management #Weekly CVE Report #wordpress security
Daily CyberSecurity
Weekly CVE Report: 4,378 New Flaws and 10 Exploited Bugs
The week in numbers CVE WATCHTOWER logged 4,378 new vulnerabilities between September 14 and September 20, 2026. This weekly CVE report focuses on the flaws that matter most: the ones with confirm…
39 views
Daily Writeups
⤷ Title: Four Ancient Linux Kernel Flaws Get Root Exploits
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𐀪 Author: Nam Phong
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ⴵ Time: Mon, 21 Sep 2026 15:13:49 +0000
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⌗ Tags: #Vulnerability #Linux Kernel #Root Exploit #vulnerability
Information Security News
Four Ancient Linux Kernel Flaws Get Root Exploits
Four severe vulnerabilities deeply embedded within the Linux kernel, lurking undetected for 10 to 21 years, finally have functional public exploits. Consequently, these critical flaws allow attack…
43 views
Daily Writeups
⤷ Title: CISA Warns of Active Exploitation of Old Linux Flaws
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𐀪 Author: Nam Phong
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ⴵ Time: Wed, 23 Sep 2026 14:01:52 +0000
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⌗ Tags: #Vulnerability #CISA #cyber threats #Linux Kernel #vulnerability
Information Security News
CISA Warns of Active Exploitation of Old Linux Flaws
A catastrophic vulnerability that lurked silently within the Linux kernel for nearly 14 years is now actively weaponized in real-world cyberattacks, alongside two other critical errors. The United…
21 views
Daily Writeups
⤷ Title: RustyTux: Public PoC Exploit Targets Linux Kernel Privilege Escalation Flaw
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𐀪 Author: Do Son
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ⴵ Time: Fri, 25 Sep 2026 00:19:09 +0000
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⌗ Tags: #Vulnerability Report #CVE_2026_23239 #espintcp #Linux Kernel #privilege escalation #proof_of_concept #RustyTux #use after free
Daily CyberSecurity
RustyTux: Public PoC Exploit Targets Linux Kernel Privilege Escalation Flaw
TL;DR A researcher published RustyTux, a working proof-of-concept for a Linux kernel privilege escalation flaw. It abuses an ESP-in-TCP use-after-free race in the strparser and espintcp code. Both…
25 views
Daily Writeups
⤷ Title: Canonical Overhauls Ubuntu Kernel Release Cycle
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𐀪 Author: Do Son
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ⴵ Time: Mon, 28 Sep 2026 03:24:47 +0000
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⌗ Tags: #Linux #Canonical #CVE #Linux Kernel #Ubuntu
Daily CyberSecurity
Canonical Overhauls Ubuntu Kernel Release Cycle
The relentless deluge of newly discovered vulnerabilities has intensified to such an extreme degree that Canonical found its historical Ubuntu kernel update rhythm fundamentally inadequate. Conseq…
16 views
Daily Writeups
⤷ Title: Linux Container Escape Flaw Details and PoC Disclosed
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𐀪 Author: Do Son
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ⴵ Time: Mon, 28 Sep 2026 13:03:16 +0000
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⌗ Tags: #Vulnerability Report #AF_UNIX #container escape #CVE_2026_80521 #cybersecurity #Linux Kernel #privilege escalation
Daily CyberSecurity
Linux Container Escape Flaw Details and PoC Disclosed
TL;DR Security researchers disclosed a critical Linux container escape flaw affecting the core operating system kernel. The vulnerability allows an unprivileged attacker to break out of isolated e…
18 views
Daily Writeups
⤷ Title: Branch Target Reuse Spectre-v2 Attack: Full Details and PoC Code Released
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𐀪 Author: Do Son
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ⴵ Time: Wed, 30 Sep 2026 02:10:42 +0000
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⌗ Tags: #Vulnerability Report #Branch Target Reuse #CVE_2026_64507 #CVE_2026_64508 #Linux Kernel #side_channel attack #Spectre_v2 #VUSec
Daily CyberSecurity
Branch Target Reuse Spectre-v2 Attack: Full Details and PoC Code Released
TL;DR Researchers at VUSec have published full details and proof-of-concept code for Branch Target Reuse (BTR), a new Spectre-v2 attack on just-in-time (JIT) compilers. Their end-to-end exploit le…
21 views
Daily Writeups
⤷ Title: The Astonishing Scale of the Recent Debian Linux Update
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𐀪 Author: Nam Phong
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ⴵ Time: Fri, 09 Oct 2026 06:51:28 +0000
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⌗ Tags: #Linux #Vulnerability #CVE #Cyber Security #Debian #Linux Kernel #Tech News
Information Security News
The Astonishing Scale of the Recent Debian Linux Update
A staggering figure within a recent Debian bulletin creates the alarming illusion that the Linux kernel has suddenly disintegrated. On September 29, the Debian project officially released DSA-6528…
18 views
Daily Writeups
⤷ Title: Public PoC Exploit Code and Technical Details Disclosed for CVE-2026-74580 Linux vhost Vulnerability (Vghost)
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𐀪 Author: Do Son
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ⴵ Time: Wed, 14 Oct 2026 03:02:40 +0000
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⌗ Tags: #Vulnerability Report #CVE_2026_74580 #Linux Kernel #Linux vhost vulnerability #privilege escalation #Vghost #VM Escape
Daily CyberSecurity
Public PoC Exploit Code and Technical Details Disclosed for CVE-2026-74580 Linux vhost Vulnerability (Vghost)
TL;DR Security researcher Fourie Zhang from the TencentOS Security Team and Corvus AI disclosed CVE-2026-74580, a high-severity memory corruption flaw dubbed Vghost. Furthermore, the researchers p…
17 views
Daily Writeups
⤷ Title: Claude Code Linux Kernel Patch Triples Read Speeds
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𐀪 Author: Do Son
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ⴵ Time: Thu, 15 Oct 2026 08:15:24 +0000
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⌗ Tags: #Linux #Anthropic #Claude Code #Linus Torvalds #Linux Kernel #Memory Management
Daily CyberSecurity
Claude Code Linux Kernel Patch Triples Read Speeds
Linus Torvalds recently tasked the artificial intelligence tool Claude Code with authoring modifications for a vital Linux kernel subsystem. Consequently, this experiment yielded a threefold accel…
11 views
Daily Writeups
⤷ Title: Six Linux Kernel Flaws Disclosed With Public PoC Exploits for Root Access and Container Escape
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𐀪 Author: Do Son
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ⴵ Time: Mon, 19 Oct 2026 00:45:30 +0000
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⌗ Tags: #Vulnerability Report #container escape #CVE_2026_89754 #CVE_2026_98256 #CVE_2026_98260 #Infinity Core #Linux Kernel #privilege escalation #proof_of_concept
Daily CyberSecurity
Six Linux Kernel Flaws Disclosed With Public PoC Exploits for Root Access and Container Escape
TL;DR Researcher Hyunwoo Kim has published full details and proof-of-concept exploits for six Linux kernel vulnerabilities he calls “Infinity Core.” Five of them lead to local privileg…
33 views
Daily Writeups
⤷ Title: PwnEscape Linux Kernel Flaw CVE-2026-99999 Lets VM Guests Escape to the Host
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𐀪 Author: Do Son
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ⴵ Time: Mon, 19 Oct 2026 01:15:04 +0000
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⌗ Tags: #Vulnerability Report #Cloud Security #CVE_2026_99999 #KVM #Linux Kernel #PwnEscape #Vercel #VM Escape
Daily CyberSecurity
PwnEscape Linux Kernel Flaw CVE-2026-99999 Lets VM Guests Escape to the Host
TL;DR PWNAI Research has disclosed PwnEscape (CVE-2026-99999), a critical Linux kernel VM escape flaw in the IPv4 networking stack. In lab tests, a guest VM leaked host memory and then ran code as…
19 views
Daily Writeups
⤷ Title: Linux Assisted-by Tag Dropped for AI Patches
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𐀪 Author: Do Son
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ⴵ Time: Tue, 20 Oct 2026 07:02:00 +0000
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⌗ Tags: #Linux #AI_Assisted Coding #Assisted_by #checkpatch.pl #Kernel Development #Linus Torvalds #Linux Kernel #open_source
Daily CyberSecurity
Linux Assisted-by Tag Dropped for AI Patches
Kernel Maintainers Vote to Retire the Tag At the Linux Kernel Maintainers Summit on October 8, attendees agreed to scrap the Assisted-by tag in patches. On October 14, the related revert patch lan…
11 views
Daily Writeups
⤷ Title: Flawed Security Patches Surge Across Open Source Projects
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𐀪 Author: Nam Phong
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ⴵ Time: Wed, 21 Oct 2026 08:30:40 +0000
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⌗ Tags: #Vulnerability #Linux Kernel #open source #Patch Management #Security Patches #vulnerability
Information Security News
Flawed Security Patches Surge Across Open Source Projects
A security patch can neutralize a vulnerability while simultaneously exposing a direct path to the next exploit. Recently, cybersecurity firm Terra Security investigated how security patches becam…
19 views
Daily Writeups
⤷ Title: ZDI Posts Unpatched Linux Kernel Flaw Details and Attack Chains on Public Mailing List
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𐀪 Author: Do Son
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ⴵ Time: Fri, 23 Oct 2026 02:26:38 +0000
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⌗ Tags: #Vulnerability Report #ksmbd #Linux Kernel #privilege escalation #Remote Code Execution #SMB Direct #ZDI #zero_day
Daily CyberSecurity
ZDI Posts Unpatched Linux Kernel Flaw Details and Attack Chains on Public Mailing List
TL;DR Trend Micro’s Zero Day Initiative (ZDI) posted details of several unpatched Linux kernel vulnerabilities to the public kernel mailing list on October 22, 2026. Two KSMBD flaws carry a …
12 views
Daily Writeups
⤷ Title: ZDI Leaks Critical Linux Kernel Vulnerabilities to LKML
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𐀪 Author: Nam Phong
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ⴵ Time: Fri, 23 Oct 2026 08:03:01 +0000
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⌗ Tags: #Vulnerability #Linux Kernel #remote code execution #vulnerability #ZDI #zero_day
Information Security News
ZDI Leaks Critical Linux Kernel Vulnerabilities to LKML
The Zero Day Initiative (ZDI) team at Trend Micro recently experienced an operational mishap. Specifically, researchers inadvertently copied several confidential vulnerability reports to the publi…
10 views
Daily Writeups
⤷ Title: Linux Kernel CVE-2026-43501 (CVSS 9.8) Exploit and Full Details Released for IPv6 RPL Flaw
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𐀪 Author: Do Son
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ⴵ Time: Mon, 26 Oct 2026 00:00:02 +0000
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⌗ Tags: #Vulnerability Report #container escape #CVE_2026_43501 #IPv6 #kernelCTF #Linux Kernel #proof_of_concept #RPL Source Routing
Daily CyberSecurity
Linux Kernel CVE-2026-43501 (CVSS 9.8) Exploit and Full Details Released for IPv6 RPL Flaw
TL;DR Full technical details and a working exploit are now public for CVE-2026-43501, a Linux kernel IPv6 vulnerability rated CVSS 9.8 by the kernel’s CVE team. The out-of-bounds write sits …
18 views
Daily Writeups
⤷ Title: Exploit and Full Details Released for 20-Year-Old Linux Kernel teql Flaw CVE-2026-23074
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𐀪 Author: Nam Phong
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ⴵ Time: Mon, 26 Oct 2026 09:38:18 +0000
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⌗ Tags: #Vulnerability #Container Escape #CVE_2026_23074 #kernelCTF #Linux Kernel #privilege escalation #Proof of Concept #teql
Information Security News
Exploit and Full Details Released for 20-Year-Old Linux Kernel teql Flaw CVE-2026-23074
TL;DR A full write-up and exploit are now public for CVE-2026-23074, a Linux kernel privilege escalation flaw in the teql traffic-control scheduler. The use-after-free dates back to Linux 2.6.12, …
14 views