How severe is CVE-2015-5837?

CVE-2015-5837 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2015-5837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5837?

CVE-2015-5837 primarily affects Apple Watchos. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-5837?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-5837 published?

CVE-2015-5837 was published on 2015-09-18 and last updated on 2026-06-17.

CVE-2015-5837

CVE-2015-5837 is a medium-severity vulnerability in Apple Watchos with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apple Watchos
Published: 2015-09-18
Last modified: 2026-06-17

Description

PluginKit in Apple iOS before 9 allows attackers to bypass an intended app-trust requirement and install arbitrary extensions via a crafted enterprise app.

Frequently asked questions

What is CVE-2015-5837?: PluginKit in Apple iOS before 9 allows attackers to bypass an intended app-trust requirement and install arbitrary extensions via a crafted enterprise app.
How severe is CVE-2015-5837?: CVE-2015-5837 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2015-5837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-5837?: CVE-2015-5837 primarily affects Apple Watchos. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-5837?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-5837 published?: CVE-2015-5837 was published on 2015-09-18 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:apple:watchos:1.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

More vulnerabilities in Apple Watchos

CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2022-32845 — Critical (CVSS 10.0): This issue was addressed with improved checks. This issue is fixed in watchOS 8.7, iOS 15.6 and iPadOS 15.6, macOS…
CVE-2015-8659 — Critical (CVSS 10.0): The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a…
CVE-2015-7113 — Critical (CVSS 10.0): The LaunchServices component in Apple iOS before 9.2 and watchOS before 2.1 allows attackers to execute arbitrary code…
CVE-2015-5922 — Critical (CVSS 10.0): Unspecified vulnerability in International Components for Unicode (ICU) before 53.1.0, as used in Apple OS X before…

All CVEs affecting Apple Watchos →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →