Is CVE-2019-8633 in the CISA KEV catalog?

No. CVE-2019-8633 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-8633?

CVE-2019-8633 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-8633?

CVE-2019-8633 has an EPSS score of 1.15% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-8633?

Upgrade iphone os to 12.3 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2019-8633

HIGH

7.5

CVSS v3

NVD

Description

A validation issue was addressed with improved input sanitization. This issue is fixed in macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra, iOS 12.3, tvOS 12.3, watchOS 5.3. An application may be able to read restricted memory.

CWE-20Improper Input Validation

How to fix

Remediation Available

iphone osNVD

Affected:< 12.3Fixed in:12.3CVE-2019-8633derived from NVD

mac os xNVD

Affected:>= 10.13.6, < 10.14.5Fixed in:10.14.5CVE-2019-8633derived from NVD

tvosNVD

Affected:< 12.3Fixed in:12.3CVE-2019-8633derived from NVD

watchosNVD

Affected:< 5.3Fixed in:5.3CVE-2019-8633derived from NVD

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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.15%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Vendor Advisory4

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	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 2024-11-21.