Apple iOS/iPadOS up to 15.7.3 out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$5k-$25k0.00

Summaryinfo

A vulnerability was found in Apple iOS and iPadOS up to 15.7.3. It has been classified as critical. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in out-of-bounds write. This vulnerability is identified as CVE-2023-27936. The attack is only possible with local access. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple iOS and iPadOS up to 15.7.3 (Smartphone Operating System). This affects an unknown code block. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Big Sur 11.7.5. An app may be able to cause unexpected system termination or write kernel memory

The weakness was released 05/09/2023. The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2023-27936 since 03/08/2023. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/29/2025). It is expected to see the exploit prices for this product increasing in the near future.

Upgrading to version 15.7.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-31662). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS/iPadOS 15.7.4

Timelineinfo

03/08/2023 🔍
05/09/2023 +61 days 🔍
05/09/2023 +0 days 🔍
11/29/2025 +935 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2023-27936 (🔍)
GCVE (CVE): GCVE-0-2023-27936
GCVE (VulDB): GCVE-100-228261
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 05/09/2023 07:27
Updated: 11/29/2025 04:59
Changes: 05/09/2023 07:27 (41), 05/31/2023 09:40 (10), 11/29/2025 04:59 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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