AI description
CVE-2025-26686 is a vulnerability in the Windows TCP/IP component related to sensitive data storage in improperly locked memory. This vulnerability could allow an unauthorized attacker to execute code over a network. The vulnerability exists because of how Windows TCP/IP handles memory locking. Exploitation involves an attacker waiting for a user to initiate a connection and send a DHCPv6 request, then replying with a DHCPv6 response containing a fake IPv6 address. Successful exploitation requires the attacker to win a race condition and make several preparations in the target environment beforehand. A security update was released by Microsoft in April 2025 to address this vulnerability.
- Description
- Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- Source
- secure@microsoft.com
- NVD status
- Analyzed
- Products
- windows_10_1507, windows_10_1607, windows_10_1809, windows_10_21h2, windows_10_22h2, windows_11_22h2, windows_11_23h2, windows_11_24h2, windows_server_2008, windows_server_2012, windows_server_2016, windows_server_2019, windows_server_2022, windows_server_2022_23h2, windows_server_2025
CVSS 3.1
- Type
- Secondary
- Base score
- 7.5
- Impact score
- 5.9
- Exploitability score
- 1.6
- Vector string
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity
- HIGH
- secure@microsoft.com
- CWE-591
- Hype score
- Not currently trending
Top 5 Trending CVEs: 1 - CVE-2017-1001000 2 - CVE-2025-33073 3 - CVE-2025-26686 4 - CVE-2025-24893 5 - CVE-2025-33053 #cve #cvetrends #cveshield #cybersecurity https://t.co/4Fua3CAN6W
@CVEShield
16 Nov 2025
10 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
GitHub - mrk336/CVE-2025-26686-The-TCP-IP-Flaw-That-Opens-the-Gates: A critical RCE vulnerability in Windows TCP/IP stack (CVE-2025-26686) leaves sensitive memory unlocked, allowing remote attackers to hijack systems. Exploitable over the network, https://t.co/fsyWKl2fZT
@akaclandestine
13 Nov 2025
2170 Impressions
12 Retweets
32 Likes
27 Bookmarks
0 Replies
0 Quotes
#exploit High severity Windows vulnerabilities: 1⃣. CVE-2025-26686: RCE in Windows 10/11/Srv TCP/IP stack - https://t.co/kswysi2zzg // leaves sensitive memory unlocked, allowing remote attackers to hijack systems. Exploitable over the network, it risks full compromise. Patch
@ksg93rd
13 Nov 2025
13032 Impressions
31 Retweets
123 Likes
100 Bookmarks
3 Replies
1 Quote
CVE-2025-26686 Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized attacker to execute code over a network. https://t.co/Q3H5Be6BqQ
@CVEnew
9 Apr 2025
270 Impressions
0 Retweets
0 Likes
1 Bookmark
0 Replies
0 Quotes
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "575117BF-9A1E-4B90-85D8-4172A58B3B72",
"versionEndExcluding": "10.0.10240.20978"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "B3B4804C-685B-4F37-92DE-CE73D1B106B4",
"versionEndExcluding": "10.0.10240.20978"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "474622F8-06D4-4AD1-8D72-A674909A7634",
"versionEndExcluding": "10.0.14393.7969"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "559D55D4-2BF2-4B8F-90CA-C6B885334A3E",
"versionEndExcluding": "10.0.14393.7969"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "13A4A79D-8D45-48FA-84F5-CE1A78E8E424",
"versionEndExcluding": "10.0.17763.7136"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "03AB53EC-354E-4F30-A278-2835CA341503",
"versionEndExcluding": "10.0.17763.7136"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2ACCA6F4-C140-4B2E-93FF-1B9DC093E831",
"versionEndExcluding": "10.0.19044.5737"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "09E0970D-79B9-40D9-BFFF-25EE5A686B04",
"versionEndExcluding": "10.0.19045.5737"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "640C45C8-83C3-4BBC-9176-705BEAA80E64",
"versionEndExcluding": "10.0.22621.5189"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4CE9402D-6417-4F82-909A-D89C06C98794",
"versionEndExcluding": "10.0.22631.5189"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "ED4B5FB3-A574-4DA6-9A43-0950B121CC92",
"versionEndExcluding": "10.0.26100.3775"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "2127D10C-B6F3-4C1D-B9AA-5D78513CC996"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "AB425562-C0A0-452E-AABE-F70522F15E1A"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6A232AB6-1EC5-44E7-AB75-0EB9A5A63259",
"versionEndExcluding": "10.0.14393.7969"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D2941A94-927C-4393-B2A0-4630F03B8B3A",
"versionEndExcluding": "10.0.17763.7136"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "52706BEC-E3D6-4188-BB88-7078FE4AF970",
"versionEndExcluding": "10.0.20348.3453"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0DA8E1E4-0C78-4ADC-9490-4A608D8601FD",
"versionEndExcluding": "10.0.25398.1551"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "99601356-2DEE-482F-BCBC-A5C7D92D2D74",
"versionEndExcluding": "10.0.26100.3775"
}
],
"operator": "OR"
}
]
}
]