Secuno
ENNL
Book demo

CVE-2025-31277

Apple Multiple Products Buffer Overflow

8.8 HIGHActively exploited (CISA KEV)EPSS 1.60%
  1. Published29 Jul 2025
  2. Added to CISA KEV20 Mar 2026
  3. Remediation due3 Apr 2026
Actively exploited (CISA KEV)

Apple Safari, iOS, watchOS, visionOS, iPadOS, macOS, and tvOS contain a buffer overflow vulnerability that could allow the processing of maliciously crafted web content which may lead to memory corruption.

Added to KEV: 20 Mar 2026Federal remediation due: 3 Apr 2026

Description

The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Apple Safari< 18.6
Webkitgtk< 2.50.0
Wpewebkit Wpe Webkit< 2.50.0
Apple iPadOS< 18.6
Apple iPhone OS< 18.6
Apple macOS≥ 15.0 < 15.6
Apple Tvos< 18.6
Apple Visionos< 2.6
Apple Watchos< 11.6
Redhat Enterprise Linux6.0 · 7.0 · 8.0 · 9.0
Redhat Enterprise Linux Aus8.2 · 8.4 · 8.6
Redhat Enterprise Linux Els7.0
Redhat Enterprise Linux Eus8.4 · 8.6 · 9.4
Redhat Enterprise Linux Tus8.6 · 8.8
Redhat Enterprise Linux Update Services For Sap Solutions8.6 · 8.8 · 9.0 · 9.2

Remediation

Fixed in
Apple Safari≥ 18.6
Webkitgtk≥ 2.50.0
Wpewebkit Wpe Webkit≥ 2.50.0
Apple iPadOS≥ 18.6
Apple iPhone OS≥ 18.6
Apple macOS≥ 15.6
Apple Tvos≥ 18.6
Apple Visionos≥ 2.6
Apple Watchos≥ 11.6

References

and 15 more references

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-10910910.0
A vulnerability was detected in Wavlink WL-WN530BE1-A 251117. This vulnerability…
CVE-2026-962658.2
IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability…
CVE-2026-1089159.9
A vulnerability has been found in Edimax BR-6208AC 1.32. This affects an unknown part…
CVE-2026-1089149.9
A flaw has been found in Edimax BR-6208AC 1.32. Affected by this issue is some unknown…
CVE-2026-1088939.9
A vulnerability was identified in Linksys E1700 up to 1.0.0.4.003. This issue affects…
CVE-2026-10889210.0
A vulnerability was determined in Linksys E1700 1.0.0.4.003. This vulnerability affects…

Frequently asked

Is CVE-2025-31277 being actively exploited?

Yes. CVE-2025-31277 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 20 Mar 2026.

How severe is CVE-2025-31277?

CVE-2025-31277 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 1.60% probability of exploitation.

Which products are affected by CVE-2025-31277?

Affected products include Apple Safari, Webkitgtk, Wpewebkit Wpe Webkit, Apple iPadOS, Apple iPhone OS, and 10 more.

How do I fix CVE-2025-31277?

Upgrade affected software to a fixed version, for example Apple Safari 18.6, Webkitgtk 2.50.0, Wpewebkit Wpe Webkit 2.50.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-31277 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.