How severe is CVE-2015-1157?

CVE-2015-1157 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2015-1157 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-1157?

CVE-2015-1157 primarily affects Apple Iphone Os. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-1157?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-1157 published?

CVE-2015-1157 was published on 2015-05-28 and last updated on 2026-06-17.

CVE-2015-1157

CVE-2015-1157 is a high-severity vulnerability in Apple Iphone Os with a CVSS 2.0 base score of 7.8. 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-17.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-17
Affected product: Apple Iphone Os
Published: 2015-05-28
Last modified: 2026-06-17

Description

CoreText in Apple iOS 8.x through 8.3 allows remote attackers to cause a denial of service (reboot and messaging disruption) via crafted Unicode text that is not properly handled during display truncation in the Notifications feature, as demonstrated by Arabic characters in (1) an SMS message or (2) a WhatsApp message.

Frequently asked questions

What is CVE-2015-1157?: CoreText in Apple iOS 8.x through 8.3 allows remote attackers to cause a denial of service (reboot and messaging disruption) via crafted Unicode text that is not properly handled during display truncation in the Notifications feature, as demonstrated by Arabic characters in (1) an SMS message or (2) a WhatsApp message.
How severe is CVE-2015-1157?: CVE-2015-1157 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2015-1157 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-1157?: CVE-2015-1157 primarily affects Apple Iphone Os. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-1157?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-1157 published?: CVE-2015-1157 was published on 2015-05-28 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:o:apple:iphone_os:8.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.0.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.0.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.1.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.1.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*

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