CVE-2025-43431: apple ios and ipados Out-of-bounds Write
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2025-43431DEBIAN-CVE-2025-43431
Published 04-11-2025Last modified 02-04-2026
Vulnerability summary
CVE-2025-43431 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in apple ios and ipados. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.6% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
0.85%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 20 · Related 6DLA-4394-1DSA-6070-1MGASA-2025-0319OPENSUSE-SU-2026:20065-1RHSA-2025:22789RHSA-2025:22790RHSA-2025:23110RHSA-2025:23433RHSA-2025:23434RHSA-2025:23451RHSA-2025:23452RHSA-2025:23583RHSA-2025:23591RHSA-2025:23742RHSA-2025:23743SUSE-SU-2025:4416-1SUSE-SU-2025:4423-1SUSE-SU-2026:0021-1SUSE-SU-2026:20102-1USN-7914-1
Timeline
- 04-11-2025PublishedVulnerability first disclosed.
- 02-04-2026Last modifiedVulnerability information updated.
Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to memory corruption.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.85%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
+0.06 pp
From 0.80% on 19-09-2026
19-09-202619-10-2026
EPSS score0.85%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
Affected systems
Ubuntu5 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtkAll versions (No fix recorded) | < 2.50.2-0ubuntu0.22.04.2 | < 2.50.2-0ubuntu0.24.04.2 | < 2.50.2-0ubuntu0.25.10.2
- webkitgtkAll versions (No fix recorded)
- wpewebkitAll versions (No fix recorded)
Debian2 products
- webkit2gtk< 2.50.2-1~deb12u1 | < 2.50.2-1~deb13u1 | < 2.50.2-1
- wpewebkitAll versions (No fix recorded) | < 2.50.2-1
3 vendors · 15 products
