CVE-2026-28929

Description

A logic issue was addressed with improved checks. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Replying to an email could display remote images in Mail in Lockdown Mode.

Is your site exposed to CVE-2026-28929?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.5

HIGH

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

EPSS — Exploit Prediction

0.0004

Probability of exploitation

0.13%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-1254 CWE-1254

Affected Products

Vendor	Product	Versions
apple	ipados	< 18.7.9
apple	iphone_os	< 18.7.9
apple	macos	14.0 — 14.8.7
apple	macos	15.0 — 15.7.7
apple	macos	26.0 — 26.5

References

Advisories & Patches

https://support.apple.com/en-us/127111 https://support.apple.com/en-us/127115 https://support.apple.com/en-us/127116 https://support.apple.com/en-us/127117

Frequently Asked Questions

What is CVE-2026-28929? +

A logic issue was addressed with improved checks. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Replying to an email could display remote images in Mail in Lockdown Mode. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-28929? +

CVE-2026-28929 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0004, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-28929? +

CVE-2026-28929 affects products from apple, specifically: ipados, iphone_os, macos. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-28929? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2013-10031 7.5

Plack-Middleware-Session versions before 0.17 may be vulnerable to HMAC comparison timing attacks

CVE-2024-44146 10.0

A logic issue was addressed with improved file handling. This issue is fixed in macOS Sequoia 15. An app may …

CVE-2024-44148 10.0

This issue was addressed with improved validation of file attributes. This issue is fixed in macOS Sequoia 15. An app …

CVE-2026-13782 10.0

Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer …

CVE-2025-24201 10.0

An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in Safari 18.3.1, …

CVE-2025-24085 10.0

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS …