NVD / CVE Program· CNA apple

CVE-2023-41064: A buffer overflow issue was addressed with improved memory handling.

HighCVSS 7.8 · v3.1KEVWeaponized No fix recorded

Noroxi assessment

Priority: This week (action score 77/100)

CISA has confirmed exploitation in the wild (Sep 11, 2023). Remediation deadline for US federal agencies: Oct 2, 2023.
Probability of exploitation in the next 30 days: 53.4% (FIRST EPSS); higher than 99% of all records.
Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.
Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Don’t wait for the next maintenance window. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 16.6.1 and iPadOS 16.6.1, macOS Monterey 12.6.9, macOS Ventura 13.5.2, iOS 15.7.9 and iPadOS 15.7.9, macOS Big Sur 11.7.10. Processing a maliciously crafted image may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

BDU:2023-05533

Published: Sep 7, 2023
Updated: Jun 17, 2026
EPSS: 53.4% · 99th percentile
CWE: CWE-120

Report tools

JSON

Action score

This week

Don’t wait for the next maintenance window.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 16 / 30 · 53.4%

CISA SSVC decision

Exploitation: active
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Sep 11, 2023. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Oct 2, 2023.

Get told when this record changes

In CISA KEV: exploitation in the wild confirmed
Weaponized exploit exists
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
apple	ipados	cpe:2.3:o:apple:ipados
apple	iphone os	cpe:2.3:o:apple:iphone_os
apple	macos	cpe:2.3:o:apple:macos

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apple). Independent of NVD's CPE analysis and usually ahead of it.

Apple iOS and iPadOS
- unspecified and later · before 16.6affected
- unspecified and later · before 15.7affected
Apple macOS
- unspecified and later · before 12.6affected
- unspecified and later · before 11.7affected
- unspecified and later · before 13.5affected

Affected versions · NVD (7)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

apple ipadosbefore 15.7.9
apple ipados16.0 and later · before 16.6.1
apple iphone osbefore 15.7.9
apple iphone os16.0 and later · before 16.6.1
apple macos11.0 and later · before 11.7.10
apple macos12.0 and later · before 12.6.9
apple macos13.0 and later · before 13.5.2

Same product

apple: all records

Other highest-scoring records for the same primary product.

CVE-2025-43300An out-of-bounds write issue was addressed with improved bounds checking.KEV
89Now
CVE-2021-30860An integer overflow was addressed with improved input validation.KEV
84Now
CVE-2023-32434An integer overflow was addressed with improved input validation.KEV
78This week

Published before and after this one in the same product

← EarlierCVE-2023-40392Sep 6, 2023 · A privacy issue was addressed with improved private data redaction for log entries.
13Monitor
← EarlierCVE-2023-41061Sep 7, 2023 · A validation issue was addressed with improved logic.KEV
62This week
Later →CVE-2023-40442Sep 11, 2023 · A privacy issue was addressed with improved private data redaction for log entries.
13Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Proof-of-concept repository on GitHub ×3

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	3 repositories	2023-10-30 → 2025-04-25

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedSep 7, 2023
CISA KEVSep 11, 2023+3 d
First PoCOct 30, 2023+52 d
TodayNov 14, 2026+1163 d

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-23-0561 · Sep 28, 2023(Google Chrome Güvenlik Bildirimi)
TR-23-0504 · Sep 8, 2023(Apple Güvenlik Güncellemesi)

All national notices →

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

Someone with local access to the system can trigger it.
No account or password is required.
A user must open a link or visit a page.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1char buf[256];
2memcpy(buf, pkt->data, pkt->len);

Fixed

1char buf[256];
2if (pkt->len > sizeof(buf)) {
3  return -EINVAL;
4}
5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log (0)

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

www.openwall.com/lists/oss-security/2023/09/21/4

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records