A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-6f3e9e3af6 advisory.

     * Prevent unsafe URI schemes from participating in media playback.
     * Make jsc_value_array_buffer_get_data() function introspectable.
     * Fix logging in to Google accounts that have a WebAuthn second factor configured.
     * Fix loading webkit://gpu when there are no threads configured for GPU rendering.
     * Fix rendering gradients that use the CSS hue interpolation method.
     * Fix pasting image data from the clipboard.
     * Fix font-family selection when the font name contains spaces.
     * Fix capturing canvas snapshots in the Web Inspector.
     * Fix several crashes and rendering issues.
     * 2.50.2 CVE fixes: CVE-2023-43000, CVE-2025-43392, CVE-2025-43419, CVE-2025-43425, CVE-2025-43427,     CVE-2025-43429, CVE-2025-43430, CVE-2025-43431, CVE-2025-43432, CVE-2025-43434, CVE-2025-43440,     CVE-2025-43443, CVE-2025-43480
     * This Fedora update additionally fixes CVE-2025-43421 via a downstream patch

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.2     and iPadOS 18.7.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.
    (CVE-2025-43434)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of Apple iOS running on the mobile device is prior to 18.7.2. It is, therefore, affected by multiple vulnerabilities.

The version of Apple iOS running on the mobile device is prior to 26.1. It is, therefore, affected by multiple vulnerabilities.

The remote host is running a version of macOS / Mac OS X that is 26.x prior to 26.1. It is, therefore, affected by multiple vulnerabilities:

  - Sudo before 1.9.17p1, when used with a sudoers file that specifies a host that is neither the current host     nor ALL, allows listed users to execute commands on unintended machines. (CVE-2025-32462)

  - REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML     that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with     tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other     parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML     gem 3.3.6 or later include the patch to fix the vulnerability. (CVE-2024-43398)

  - REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an     XML that has many digits between &# and x...; in a hex numeric character reference (&#x...;). This does     not happen with Ruby 3.2 or later. Ruby 3.1 is the only affected maintained Ruby. The REXML gem 3.3.9 or     later include the patch to fix the vulnerability. (CVE-2024-49761)

  - A permissions issue was addressed with improved validation. This issue is fixed in macOS Ventura 13.7.5,     iPadOS 17.7.6, macOS Sequoia 15.4, macOS Sonoma 14.7.5. A shortcut may be able to access files that are     normally inaccessible to the Shortcuts app. (CVE-2025-30465)

  - A logic issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14.8.2, macOS     Sequoia 15.7.2. An app may be able to access user-sensitive data. (CVE-2025-43322)

Note that Nessus has not tested for these issues but has instead relied only on the operating system's self-reported version number.

ID	Name	Product	Family	Severity
276699	Fedora 43 : webkitgtk (2025-6f3e9e3af6)	Nessus	Fedora Local Security Checks	critical
276574	Linux Distros Unpatched Vulnerability : CVE-2025-43434	Nessus	Misc.	medium
274061	Apple iOS < 18.7.2 Multiple Vulnerabilities (125633)	Nessus	Mobile Devices	high
272230	Apple iOS < 26.1 Multiple Vulnerabilities (125632)	Nessus	Mobile Devices	low
272228	macOS 26.x < 26.1 Multiple Vulnerabilities (125634)	Nessus	MacOS X Local Security Checks	high

Detections

Analytics

CVE-2025-43434

medium

Tenable Plugins

critical

medium

high

low

high