AI description
CVE-2016-5195, commonly known as "Dirty COW," is a local privilege escalation vulnerability found in the Linux kernel. The flaw stems from a race condition within the kernel's memory subsystem, specifically in how it handles the copy-on-write (COW) mechanism for private read-only memory mappings. This race condition allows an unprivileged local user to gain write access to memory regions that should otherwise be read-only. This vulnerability enables an attacker to modify read-only files, which can lead to an increase in their privileges on the system. Discovered and publicly disclosed in October 2016, the "Dirty COW" bug had reportedly existed in the Linux kernel since September 2007, affecting versions 2.6.22 and higher. Exploits leveraging this technique were observed in the wild prior to its fix.
- Description
- Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."
- Source
- chrome-cve-admin@google.com
- NVD status
- Analyzed
- Products
- ubuntu_linux, linux_kernel, enterprise_linux, enterprise_linux_aus, enterprise_linux_eus, enterprise_linux_long_life, enterprise_linux_tus, debian_linux, fedora, pan-os, cloud_backup, hci_storage_nodes, oncommand_balance, oncommand_performance_manager, oncommand_unified_manager_for_clustered_data_ontap, ontap_select_deploy_administration_utility, snapprotect, solidfire
CVSS 3.1
- Type
- Primary
- Base score
- 7
- Impact score
- 5.9
- Exploitability score
- 1
- Vector string
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 7.2
- Impact score
- 10
- Exploitability score
- 3.9
- Vector string
- AV:L/AC:L/Au:N/C:C/I:C/A:C
Data from CISA
- Vulnerability name
- Linux Kernel Race Condition Vulnerability
- Exploit added on
- Mar 3, 2022
- Exploit action due
- Mar 24, 2022
- Required action
- Apply updates per vendor instructions.
- Hype score
- Not currently trending
2026 Linux 重置密码教程大全 - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300)
@furlingdu
1 Jun 2026
158 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Top 5 Trending CVEs: 1 - CVE-2025-55182 2 - CVE-2016-5195 3 - CVE-2026-20223 4 - CVE-2026-41940 5 - CVE-2026-41089 #cve #cvetrends #cveshield #cybersecurity https://t.co/4Fua3CAN6W
@CVEShield
23 May 2026
322 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
- Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300) -PinTheft (CVE-2026-43494)
@luadoles
22 May 2026
193 Impressions
0 Retweets
0 Likes
0 Bookmarks
1 Reply
0 Quotes
Linux 重置密码大全 - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300) -PinTheft (CVE-2026-4
@hsn8086k
22 May 2026
37707 Impressions
101 Retweets
633 Likes
317 Bookmarks
40 Replies
7 Quotes
Top 5 Trending CVEs: 1 - CVE-2026-44578 2 - CVE-2016-5195 3 - CVE-2026-0073 4 - CVE-2026-20841 5 - CVE-2025-14180 #cve #cvetrends #cveshield #cybersecurity https://t.co/4Fua3CAN6W
@CVEShield
15 May 2026
320 Impressions
0 Retweets
1 Like
0 Bookmarks
0 Replies
0 Quotes
2026 Linux 如何重置密碼 - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300)
@sayaalauun
14 May 2026
76 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Them: Linux is most secure OS Me: Yes - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300)
@hetmehtaa
14 May 2026
72711 Impressions
41 Retweets
378 Likes
163 Bookmarks
40 Replies
15 Quotes
2026 Linux 重置密码教程大全 - Dirty Cow (CVE-2016-5195) - Dirty Pipe (CVE-2022-0847) - io_uring UAF (CVE-2022-2602) - Copy Fail (CVE-2026-31431) - io_uring ZCRX freelist (CVE-2026-43121) - Dirty Frag (CVE-2026-43284 CVE-2026-43500) - Fragnesia (CVE-2026-46300)
@hsn8086k
14 May 2026
69819 Impressions
179 Retweets
1061 Likes
459 Bookmarks
12 Replies
11 Quotes
Top 30 CVEs for linux/linux_kernel (30 days). Top CVEs: CVE-1999-0128, CVE-2016-5195, CVE-2024-1086 Vendors: linux VulnSocial — your risk exposure provider. https://t.co/GRA33Epy7w #vulnsocial #Linux #Linuxkernel #CVE #CyberSecurity #VulnerabilityManagement
@vulnsocial
9 Mar 2026
2 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Top 30 CVEs for debian (30 days). Top CVEs: CVE-2011-2523, CVE-2016-5195, CVE-2025-49113 Vendors: debian VulnSocial — your risk exposure provider. #vulnsocial #Debian #CVE #CyberSecurity #VulnerabilityManagement https://t.co/iUn30r73W2
@vulnsocial
3 Mar 2026
0 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
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