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Security Updates for Microsoft Excel Products C2R (August 2025)

🗓️ 15 Aug 2025 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 4 Views

Excel Aug 2025 updates missing; RCE flaws bypass auth and enable any commands; Nessus not tested.

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

include('compat.inc');

if (description)
{
  script_id(250282);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/10/29");

  script_cve_id(
    "CVE-2025-53735",
    "CVE-2025-53737",
    "CVE-2025-53739",
    "CVE-2025-53741",
    "CVE-2025-53759"
  );
  script_xref(name:"IAVA", value:"2025-A-0594-S");

  script_name(english:"Security Updates for Microsoft Excel Products C2R (August 2025)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Excel Products are missing a security update.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Excel Products are missing a security update. It is, therefore, affected by multiple remote code
execution vulnerabilities that attackers can exploit to bypass authentication and execute unauthorized arbitrary
commands.
    
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://learn.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5931548c");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released patches to address these issues.

For Office 365, Office 2016 C2R, or Office 2019, ensure automatic
updates are enabled or open any office app and manually perform an
update.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-53759");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/08/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/08/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/15");

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

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

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

  script_dependencies("office_installed.nasl","microsoft_office_compatibility_pack_installed.nbin","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('vcf_extras_office.inc');

var bulletin = 'MS25-08';

var constraints = [
  {'fixed_version':'16.0.19029.20184','channel':'Current'},
  {'fixed_version':'16.0.18925.20216','channel':'Enterprise Deferred','channel_version':'2506'},
  {'fixed_version':'16.0.18827.20230','channel':'Enterprise Deferred','channel_version':'2505'},
  {'fixed_version':'16.0.18730.20260','channel':'Enterprise Deferred'},
  {'fixed_version':'16.0.18526.20546','channel':'First Release for Deferred'},
  {'fixed_version':'16.0.18526.20546','channel':'Deferred','channel_version':'2502'},
  {'fixed_version':'16.0.17928.20654','channel':'Deferred','channel_version':'2408'},
  {'fixed_version':'16.0.17328.20882','channel':'Deferred'},
  {'fixed_version':'16.0.19029.20184','channel':'2024 Retail'},
  {'fixed_version':'16.0.19029.20184','channel':'2021 Retail'},
  {'fixed_version':'16.0.19029.20184','channel':'2019 Retail'},
  {'fixed_version':'16.0.19029.20184','channel':'2016 Retail'},
  {'fixed_version':'16.0.17932.20496','channel':'LTSC 2024'},
  {'fixed_version':'16.0.14334.20244','channel':'LTSC 2021'},
  {'fixed_version':'16.0.10417.20042','channel':'2019 Volume'}
];

vcf::microsoft::office_product::check_version_and_report(
  constraints:constraints,
  severity:SECURITY_HOLE,
  bulletin:bulletin,
  subproduct:'Excel'
);

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