CVE-2023-32373 (GCVE-0-2023-32373)
Vulnerability from cvelistv5 – Published: 2023-06-23 00:00 – Updated: 2025-10-21 23:05Summary
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Severity
8.8 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
- CWE-416 - Use After Free
Assigner
References
8 references
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Apple | macOS |
Affected:
unspecified , < 13.4
(custom)
|
|
| Apple | Safari |
Affected:
unspecified , < 16.5
(custom)
|
|
| Apple | watchOS |
Affected:
unspecified , < 9.5
(custom)
|
|
| Apple | iOS and iPadOS |
Affected:
unspecified , < 15.7
(custom)
|
|
| Apple | iOS and iPadOS |
Affected:
unspecified , < 16.5
(custom)
|
|
| Apple | tvOS |
Affected:
unspecified , < 16.5
(custom)
|
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9fb9da51-9490-4ab7-921e-a59ae5fdf66f
Exploited: Yes
Timestamps
First Seen: 2023-05-22
Asserted: 2023-05-22
Scope
Notes: KEV entry: Apple Multiple Products WebKit Use-After-Free Vulnerability | Affected: Apple / Multiple Products | Description: Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. | Required action: Apply updates per vendor instructions. | Due date: 2023-06-12 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://support.apple.com/HT213757, https://support.apple.com/HT213758, https://support.apple.com/HT213761, https://support.apple.com/HT213762, https://support.apple.com/HT213764, https://support.apple.com/HT213765; https://nvd.nist.gov/vuln/detail/CVE-2023-32373
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-416 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Multiple Products |
| Due Date | 2023-06-12 |
| Date Added | 2023-05-22 |
| Vendorproject | Apple |
| Vulnerabilityname | Apple Multiple Products WebKit Use-After-Free Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 12:26 UTC
| Updated: 2026-02-06 07:17 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9a5ada57-3275-4828-8f69-3ccb49426218
Exploited: Yes
Timestamps
First Seen: 2023-05-22
Asserted: 2023-05-22
Scope
Notes: KEVIntel entry: A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6... | Affected: Apple / macOS, Safari, watchOS, iOS and iPadOS, tvOS | CVSS: 8.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6... |
| Vendor | Apple |
| Product | macOS, Safari, watchOS, iOS and iPadOS, tvOS |
| Added Date | 2023-05-22T00:00:00.000Z |
| Cvss Score | 8.8 |
| Epss Score | None |
| Cvss Severity | HIGH |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 14:05 UTC
| Updated: 2026-07-10 06:14 UTC
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"current_release_date": "2025-11-21T14:39:08+00:00",
"cve": "CVE-2023-32373",
"id": "CVE-2023-32373",
"initial_release_date": "2023-05-22T00:00:00+00:00",
"product_status:fixed": "116",
"product_status:known_affected": "9",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "webkitgtk: a use-after-free when processing maliciously crafted web content",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-32373.json",
"version": "3"
},
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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