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.
CVE-2025-31200
Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-04-17), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.
- Actively exploited in the wild (CISA-KEV)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(high)
- EG Risk
- 99(Act)EG Risk 99/100SSVC: Act
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity98% × 45%Exploitation100% × 40%Automatability100% × 15%Action: Fix now — active exploitation, automatable, high impact. - EPSS PROB
- 20%
- EPSS %ILE
- 97%
- KEV
- ⚠ Exploited
Published
April 16, 2025
Last Modified
April 3, 2026
Advisory Details (10)
Auto-updated Aug 5, 2026Full Disclosure: Re: [FD] Full Disclosure: CVE-2025-31200 & CVE-2025-31201 – 0-Click iMessage Chain → Secure Enclave Key Theft, Wormable RCE, Crypto Theft
http://seclists.org/fulldisclosure/2025/Oct/4Full Disclosure: Re: [FD] Full Disclosure: CVE-2025-31200 & CVE-2025-31201 – 0-Click iMessage Chain → Secure Enclave Key Theft, Wormable RCE, Crypto Theft
http://seclists.org/fulldisclosure/2025/Oct/0Full Disclosure: APPLE-SA-05-12-2025-6 watchOS 11.5
http://seclists.org/fulldisclosure/2025/May/10Full Disclosure: Full Disclosure: CVE-2025-31200 & CVE-2025-31201 – 0-Click iMessage Chain → Secure Enclave Key Theft, Wormable RCE, Crypto Theft
http://seclists.org/fulldisclosure/2025/Jun/14About the security content of watchOS 11.5 - Apple Support
https://support.apple.com/en-us/122722About the security content of visionOS 2.4.1 - Apple Support
https://support.apple.com/en-us/122402About the security content of tvOS 18.4.1 - Apple Support
https://support.apple.com/en-us/122401About the security content of macOS Sequoia 15.4.1 - Apple Support
https://support.apple.com/en-us/122400About the security content of iOS 18.4.1 and iPadOS 18.4.1 - Apple Support
https://support.apple.com/en-us/122282Full Disclosure: APPLE-SA-04-16-2025-4 visionOS 2.4.1
http://seclists.org/fulldisclosure/2025/Apr/26Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 55× in last 7d / 217× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 560 total refreshes for this CVE.
- 2026-08-08 13:10 UTCGHSA enrichment
- 2026-08-08 08:48 UTCGHSA enrichment
- 2026-08-08 04:27 UTCGHSA enrichment
- 2026-08-08 00:05 UTCGHSA enrichment
- 2026-08-07 19:44 UTCEG score recompute
- 2026-08-07 19:44 UTCGHSA enrichment
- 2026-08-07 17:09 UTCCISA KEV update
- 2026-08-07 16:26 UTCEPSS rescore
- 2026-08-07 15:22 UTCGHSA enrichment
- 2026-08-07 11:01 UTCGHSA enrichment
- 2026-08-07 06:39 UTCGHSA enrichment
- 2026-08-07 02:17 UTCGHSA enrichment
- 2026-08-06 21:55 UTCGHSA enrichment
- 2026-08-06 17:34 UTCEG score recompute
- 2026-08-06 17:34 UTCGHSA enrichment
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-06 13:12 UTCGHSA enrichment
- 2026-08-06 08:51 UTCGHSA enrichment
- 2026-08-06 04:30 UTCGHSA enrichment
- 2026-08-06 00:08 UTCGHSA enrichment
- 2026-08-05 19:47 UTCEG score recompute
- 2026-08-05 19:47 UTCGHSA enrichment
- 2026-08-05 19:16 UTCEPSS rescore
- 2026-08-05 17:25 UTCCISA KEV update
- 2026-08-05 15:25 UTCGHSA enrichment
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- 2026-08-05 11:03 UTCGHSA enrichment
- 2026-08-05 06:38 UTCGHSA enrichment
- 2026-08-05 02:16 UTCGHSA enrichment
- 2026-08-04 21:53 UTCGHSA enrichment
- 2026-08-04 17:31 UTCEG score recompute
- 2026-08-04 17:31 UTCGHSA enrichment
- 2026-08-04 17:02 UTCCISA KEV update
- 2026-08-04 15:09 UTCEPSS rescore
- 2026-08-04 13:09 UTCGHSA enrichment
- 2026-08-04 08:48 UTCGHSA enrichment
- 2026-08-04 04:26 UTCGHSA enrichment
- 2026-08-04 00:05 UTCGHSA enrichment
- 2026-08-03 19:43 UTCGHSA enrichment
- 2026-08-03 19:22 UTCCISA KEV update
- 2026-08-03 15:22 UTCGHSA enrichment
- 2026-08-03 11:01 UTCEG score recompute
- 2026-08-03 11:00 UTCGHSA enrichment
- 2026-08-03 10:35 UTCEPSS rescore
- 2026-08-03 06:37 UTCGHSA enrichment
- 2026-08-03 02:13 UTCGHSA enrichment
- 2026-08-02 21:51 UTCGHSA enrichment
- 2026-08-02 17:30 UTCGHSA enrichment
- 2026-08-02 13:08 UTCGHSA enrichment
- 2026-08-02 08:47 UTCGHSA enrichment
- 2026-08-02 04:25 UTCEG score recompute
- 2026-08-02 04:25 UTCGHSA enrichment
- 2026-08-02 02:26 UTCEPSS rescore
- 2026-08-02 00:04 UTCGHSA enrichment
- 2026-08-01 19:42 UTCGHSA enrichment
- 2026-08-01 15:20 UTCGHSA enrichment
- 2026-08-01 10:58 UTCGHSA enrichment
- 2026-08-01 06:36 UTCEG score recompute
- 2026-08-01 06:36 UTCGHSA enrichment
- 2026-08-01 04:15 UTCEPSS rescore
- 2026-08-01 02:13 UTCGHSA enrichment
- 2026-07-31 21:51 UTCGHSA enrichment
- 2026-07-31 17:26 UTCGHSA enrichment
- 2026-07-31 13:04 UTCGHSA enrichment
- 2026-07-31 08:43 UTCGHSA enrichment
- 2026-07-31 04:21 UTCGHSA enrichment
- 2026-07-30 23:59 UTCGHSA enrichment
- 2026-07-30 19:38 UTCEG score recompute
- 2026-07-30 19:38 UTCGHSA enrichment
- 2026-07-30 16:27 UTCEPSS rescore
- 2026-07-30 15:16 UTCGHSA enrichment
- 2026-07-30 10:54 UTCEG score recompute
- 2026-07-30 10:54 UTCGHSA enrichment
- 2026-07-30 06:32 UTCGHSA enrichment
- 2026-07-30 01:57 UTCGHSA enrichment
- 2026-07-29 21:33 UTCGHSA enrichment
- 2026-07-29 19:27 UTCCISA KEV update
- 2026-07-29 17:11 UTCGHSA enrichment
- 2026-07-29 12:50 UTCGHSA enrichment
- 2026-07-29 08:29 UTCGHSA enrichment
- 2026-07-29 04:05 UTCGHSA enrichment
- 2026-07-28 23:43 UTCGHSA enrichment
- 2026-07-28 19:19 UTCEG score recompute
- 2026-07-28 19:19 UTCGHSA enrichment
- 2026-07-28 15:35 UTCEPSS rescore
- 2026-07-28 14:57 UTCGHSA enrichment
- 2026-07-28 10:33 UTCGHSA enrichment
- 2026-07-28 06:12 UTCGHSA enrichment
- 2026-07-28 01:50 UTCGHSA enrichment
- 2026-07-27 21:29 UTCGHSA enrichment
- 2026-07-27 19:24 UTCCISA KEV update
- 2026-07-27 17:17 UTCCISA KEV update
- 2026-07-27 17:06 UTCGHSA enrichment
- 2026-07-27 12:44 UTCGHSA enrichment
- 2026-07-27 08:22 UTCGHSA enrichment
- 2026-07-27 04:00 UTCGHSA enrichment
- 2026-07-26 23:39 UTCGHSA enrichment
- 2026-07-26 19:17 UTCGHSA enrichment
- 2026-07-26 14:55 UTCEG score recompute
- 2026-07-26 14:55 UTCGHSA enrichment
- 2026-07-26 14:53 UTCEPSS rescore
Publicly available exploits
(4 references)Working exploit code is in the public domain (4 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoChunters-sec/CVE-2025-31200First seen Aug 28, 2025
IOS audio buffer overflow CVE-2025-31200 POC
Open source ↗ - GitHub PoCserundengsapi/CVE-2025-31200-iOS-AudioConverter-RCEFirst seen May 22, 2025
Public disclosure of CVE-2025-31200 – Zero-click RCE in iOS 18.X via AudioConverterService and malicious audio file.
Open source ↗ - GitHub PoCJGoyd/iOS-Attack-Chain-CVE-2025-31200-CVE-2025-31201First seen May 17, 2025
CVE-2025-31200 is a zero-day, zero-click RCE in iOS CoreAudio’s AudioConverterService, triggered by a malicious audio file via iMessage/SMS. Exploitation bypassed Blastdoor, enabled kernel escalation (CVE-2025-31201), and allowed token theft until patched in iOS 18.4.1 (Apr 16, 2025).
Open source ↗ - GitHub PoCzhuowei/apple-positional-audio-codec-invalid-headerFirst seen Apr 21, 2025
CVE-2025-31200 - @Noahhw46 figured it out
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-119
- CVE-2003-0819EG 10.0EPSS p99HIGH
- CVE-2003-0903EG 10.0EPSS p98HIGH
- CVE-2003-1339EG 10.0EPSS p99HIGH
- CVE-2003-0095EG 10.0EPSS p96HIGH
- CVE-2002-2227EG 10.0HIGH
- CVE-2002-2248EG 10.0EPSS p92HIGH
- CVE-2002-2250EG 10.0EPSS p94HIGH
- CVE-2002-2251EG 10.0EPSS p93HIGH
- CVE-2002-2253EG 10.0EPSS p93HIGH
- CVE-2002-2257EG 10.0EPSS p92HIGH
Frequently asked(6)
What is CVE-2025-31200?
When was CVE-2025-31200 disclosed?
Is CVE-2025-31200 actively exploited?
What is the CVSS score of CVE-2025-31200?
Which products are affected by CVE-2025-31200?
How do I remediate CVE-2025-31200?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-31200
Is Your Infrastructure Affected by CVE-2025-31200?
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