CVE-2025-31200: Apple Multiple Products Memory Corruption Vulnerability

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• Yes, if you run Apple Multiple Products. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-04-17, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-05-08; treat that as the outer limit, not the target.
• EPSS 20.9%, percentile 98: FIRST’s model estimates a 20.9% chance of exploitation activity in the next 30 days, higher than 98% of all scored CVEs (very high). EPSS is a probability, not a verdict.
• Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

What it is

A memory corruption issue was addressed with improved bounds checking. This issue is fixed in iOS 18.4.1 and iPadOS 18.4.1, macOS Sequoia 15.4.1, tvOS 18.4.1, visionOS 2.4.1, watchOS 11.5. Processing an audio stream in a maliciously crafted media file may result in code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS released before iOS 18.4.1.

CISA’s summary

Apple iOS, iPadOS, macOS, and other Apple products contain a memory corruption vulnerability that allows for code execution when processing an audio stream in a maliciously crafted media file.

Weakness type: CWE-119.

Product: Apple Multiple Products · Assigned by: apple · Published: 2025-04-16

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: none (no login)
• User interaction: none
• Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: added 2025-04-17; federal due date 2025-05-08. Known ransomware use: Unknown.
• CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
• CISA SSVC assessment: exploitation active, automatable yes, technical impact total.
• FIRST EPSS (model of 2026-10-21): 20.90% probability of exploitation activity in the next 30 days; percentile 98.

Timeline

• 2025-04-16 — CVE record published by apple
• 2025-04-17 — Added to CISA’s Known Exploited Vulnerabilities catalog
• 2025-05-08 — CISA remediation deadline for US federal agencies
• 2026-04-02 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

1. Listed in CISA KEV notes (support.apple.com) support.apple.com
2. Listed in CISA KEV notes (support.apple.com) support.apple.com
3. Listed in CISA KEV notes (support.apple.com) support.apple.com
4. Listed in CISA KEV notes (support.apple.com) support.apple.com

Vulnerability records

1. CVE.org record CVE-2025-31200 cve.org
2. NVD entry CVE-2025-31200 nvd.nist.gov

Government

1. CISA Known Exploited Vulnerabilities catalog entry cisa.gov

Other references from the CVE record and advisory

1. support.apple.com support.apple.com
2. github.com github.com
3. github.com github.com
4. blog.noahhw.dev blog.noahhw.dev
5. news.ycombinator.com news.ycombinator.com
6. seclists.org seclists.org
7. seclists.org seclists.org
8. seclists.org seclists.org
9. seclists.org seclists.org
10. seclists.org seclists.org

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