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KB5065509: Windows Server 2012 Security Update (September 2025)

🗓️ 09 Sep 2025 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 2 Views

KB5065509 fixes SMB relay risk and RRAS read vulnerabilities; enables auditing and hardening.

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Code
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.

#
# The descriptive text and package checks in this plugin were
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
##

include('compat.inc');

if (description)
{
  script_id(261800);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/10/29");

  script_cve_id(
    "CVE-2025-53796",
    "CVE-2025-53797",
    "CVE-2025-53798",
    "CVE-2025-53799",
    "CVE-2025-53803",
    "CVE-2025-53804",
    "CVE-2025-53806",
    "CVE-2025-53808",
    "CVE-2025-53810",
    "CVE-2025-54091",
    "CVE-2025-54093",
    "CVE-2025-54094",
    "CVE-2025-54095",
    "CVE-2025-54096",
    "CVE-2025-54097",
    "CVE-2025-54098",
    "CVE-2025-54099",
    "CVE-2025-54101",
    "CVE-2025-54104",
    "CVE-2025-54107",
    "CVE-2025-54109",
    "CVE-2025-54110",
    "CVE-2025-54113",
    "CVE-2025-54894",
    "CVE-2025-54895",
    "CVE-2025-54911",
    "CVE-2025-54912",
    "CVE-2025-54915",
    "CVE-2025-54916",
    "CVE-2025-54917",
    "CVE-2025-54918",
    "CVE-2025-55225",
    "CVE-2025-55226",
    "CVE-2025-55234"
  );
  script_xref(name:"MSKB", value:"5065509");
  script_xref(name:"MSFT", value:"MS25-5065509");
  script_xref(name:"IAVA", value:"2025-A-0670-S");
  script_xref(name:"IAVA", value:"2025-A-0671-S");

  script_name(english:"KB5065509: Windows Server 2012 Security Update (September 2025)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing security update 5065509. It is, therefore, affected by multiple vulnerabilities

  - SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who
    successfully exploited these vulnerabilities could perform relay attacks and make the users subject to
    elevation of privilege attacks. The SMB Server already supports mechanisms for hardening against relay
    attacks: SMB Server signing SMB Server Extended Protection for Authentication (EPA) Microsoft is releasing
    this CVE to provide customers with audit capabilities to help them to assess their environment and to
    identify any potential device or software incompatibility issues before deploying SMB Server hardening
    measures that protect against relay attacks. If you have not already enabled SMB Server hardening
    measures, we advise customers to take the following actions to be protected from these relay attacks:
    Assess your environment by utilizing the audit capabilities that we are exposing in the September 2025
    security updates. See Support for Audit Events to deploy SMB Server HardeningSMB Server Signing & SMB
    Server EPA. Adopt appropriate SMB Server hardening measures. (CVE-2025-55234)

  - Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to
    disclose information over a network. (CVE-2025-53796, CVE-2025-53797, CVE-2025-53798, CVE-2025-53806)

  - Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to
    disclose information over a network. (CVE-2025-54095, CVE-2025-54096, CVE-2025-54097, CVE-2025-55225)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5065509");
  script_set_attribute(attribute:"solution", value:
"Apply Security Update 5065509");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-55234");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(41, 121, 122, 125, 126, 190, 200, 209, 284, 287, 362, 367, 416, 693, 843, 908);

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/09/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/09/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/09/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows_server_2012");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_check_rollup.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include('smb_func.inc');
include('smb_hotfixes.inc');
include('smb_hotfixes_fcheck.inc');
include('smb_reg_query.inc');

get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');

var bulletin = 'MS25-09';
var kbs = make_list(
  '5065509'
);

if (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit('SMB/Registry/Enumerated');
get_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);

if (hotfix_check_sp_range(win8:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

var share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

if (
  smb_check_rollup(os:'6.2',
                   sp:0,
                   rollup_date:'09_2025',
                   bulletin:bulletin,
                   rollup_kb_list:[5065509])
)
{
  replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
}

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29 Oct 2025 00:00Current
8.8High risk
Vulners AI Score8.8
CVSS 3.18.8 - 9.8
EPSS0.18834
SSVC
2