CVE-2022-26717

A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 15.5, watchOS 8.6, iOS 15.5 and iPadOS 15.5, macOS Monterey 12.4, Safari 15.5, iTunes 12.12.4 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.

Published: 2022-11-01 Last update: 2025-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-26717 is rated Moderate Risk (60.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.42%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-26717

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.52% 1.42% +0.91%
2 2026-06-14 0.94% 0.52% -0.42%
3 2026-05-21 — 0.94% —

Full EPSS history (25 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-26717

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2022-26717

OS Trackers for CVE-2022-26717

vendor priority summary link
debian not yet assigned CVE-2022-26717 not yet assigned priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2022-26717
gentoo high CVE-2022-26717: 1 GLSA(s) (202208-39), 1 atom(s) (net-libs/webkit-gtk); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-26717
redhat medium — https://access.redhat.com/security/cve/CVE-2022-26717
suse high CVE-2022-26717 severity important: SUSE including 142 source package names (WebKit2GTK-4.0-lang-2.36.3-150400.4.3.1, WebKit2GTK-4.1-lang-2.36.3-150400.4.3.1, …), 502 product×package rows across 60 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (60 product lines)): Fixed 502. https://www.suse.com/security/cve/CVE-2022-26717/
ubuntu medium CVE-2022-26717 medium priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 55 status rows across 11 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): DNE 25, ignored 19, released 8, needs-triage 3. https://ubuntu.com/security/CVE-2022-26717

Affected software / configurations for CVE-2022-26717

Vendor Product Version Raw CPE
apple itunes < 12.12.4 cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*
apple safari < 15.5 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple ipados < 15.5 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 15.5 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos >= 12.0.0, < 12.4 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 15.5 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple watchos < 8.6 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References for CVE-2022-26717

URL Tags
https://support.apple.com/en-us/HT213253 Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213254 Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213257 Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213258 Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213259 Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213260 Release Notes Vendor Advisory
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