Is CVE-2026-28835 in the CISA KEV catalog?

No. CVE-2026-28835 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-28835?

CVE-2026-28835 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-28835?

CVE-2026-28835 has an EPSS score of 0.45% (36th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-28835?

Update macOS Sequoia to 15.7.5 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2026-28835

MEDIUM

6.5

CVSS v3

NVD

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. Mounting a maliciously crafted SMB network share may lead to system termination.

CWE-416Use After Free

How to fix

Remediation Available

macOS SequoiaApple

Fixed in:15.7.5126795

macOS SonomaApple

Fixed in:14.8.5126796

macOS TahoeApple

Fixed in:26.4126794

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.45%probability of exploitation in 30 days

36thpercentile

Low risk: more likely to be exploited than 36% of all known CVEs.

References

Vendor Advisory3

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-25.