High

Buffer Overflow in Apple Baseband on iPhone 16e

IdentifiersCVE-2026-28875CWE-120· Buffer Copy without Checking Size…

CVE-2026-28875 is a buffer overflow vulnerability in the Baseband component addressed by Apple in iOS 26.4 and iPadOS 26.4. Apple states that the issue was fixed through improved bounds checking. The available advisory context indicates the flaw affects Baseband functionality and is available for iPhone 16e, with exploitation by a remote attacker potentially causing a denial-of-service. No additional public technical detail about the specific vulnerable function or code path is provided in the supplied content.

For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

Start free trial

ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

A remote attacker may be able to trigger a denial-of-service condition against the affected device. Based on the advisory language, successful exploitation results in service disruption or unexpected termination within the affected baseband-related processing path, but the provided information does not indicate code execution or privilege escalation.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by limiting use of affected devices in untrusted or high-risk network environments and prioritizing update deployment for iPhone 16e devices. However, no vendor-provided workaround or configuration-based mitigation is included in the supplied content, so applying Apple's security update is the primary mitigation.

Remediation

Patch, then assume compromise.

Update affected devices to iOS 26.4 or later. Apple indicates the issue is fixed in iOS 26.4 and iPadOS 26.4 through improved bounds checking in the affected Baseband component.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

AppleIpadosoperating_system

AppleIphone Osoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

2 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

Start free trial

Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2