CVE-2026-64713: apple ios and ipados Observable Discrepancy
CVSS: 8.1v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-64713DEBIAN-CVE-2026-64713
Published 27-07-2026Last modified 28-07-2026
Vulnerability summary
CVE-2026-64713 is a high (CVSS 8.1) Observable Discrepancy vulnerability in apple ios and ipados. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39% of scored vulnerabilities.
CVSS score
8.1/10
010
High · v3.1 (CVE.org)EPSS score
0.47%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 6 · Related 4Timeline
- 27-07-2026PublishedVulnerability first disclosed.
- 28-07-2026Last modifiedVulnerability information updated.
Description
This issue was addressed with improved checks. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Websites may know if the user has visited a given link.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 8.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- NVDNIST8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
0.00 pp
From 0.47% on 19-09-2026
19-09-202619-10-2026
EPSS score0.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apple8 products
- ios and ipados< 26.6
- ipados< 26.6
- iphone_os< 26.6
- macos< 26.6 | ≥ 26.0, < 26.6
- safari< 26.6
Ubuntu5 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtkAll versions (No fix recorded) | < 2.52.6-0ubuntu0.24.04.1 | < 2.52.6-0ubuntu0.26.04.1
- webkitgtkAll versions (No fix recorded)
- wpewebkitAll versions (No fix recorded)
Debian2 products
- webkit2gtkAll versions (No fix recorded) | < 2.52.6-1~deb13u1 | < 2.52.6-1
- wpewebkitAll versions (No fix recorded) | < 2.52.6-1
3 vendors · 15 products
