Is CVE-2025-31203 in the CISA KEV catalog?

No. CVE-2025-31203 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-31203?

CVE-2025-31203 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2025-31203?

CVE-2025-31203 has an EPSS score of 0.32% (24th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-31203?

Upgrade ipados to 18.4 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2025-31203

MEDIUM

6.5

CVSS v3

NVD

Description

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, macOS Sequoia 15.4, macOS Sonoma 14.7.5, tvOS 18.4, visionOS 2.4, watchOS 11.4. An attacker on the local network may be able to cause a denial-of-service.

CWE-190Integer Overflow

How to fix

Remediation Available

ipadosNVD

Affected:>= 18.0, < 18.4Fixed in:18.4CVE-2025-31203derived from NVD

iphone osNVD

Affected:< 18.4Fixed in:18.4CVE-2025-31203derived from NVD

macosNVD

Affected:>= 15.0, < 15.4Fixed in:15.4CVE-2025-31203derived from NVD

tvosNVD

Affected:< 18.4Fixed in:18.4CVE-2025-31203derived from NVD

visionosNVD

Affected:< 2.4Fixed in:2.4CVE-2025-31203derived from NVD

watchosNVD

Affected:< 11.4Fixed in:11.4CVE-2025-31203derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.32%probability of exploitation in 30 days

24thpercentile

Low risk: more likely to be exploited than 24% of all known CVEs.

References

Vendor Advisory7

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-02.