How severe is CVE-2010-1770?

CVE-2010-1770 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2010-1770 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-1770?

CVE-2010-1770 primarily affects Apple Safari. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-1770?

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

When was CVE-2010-1770 published?

CVE-2010-1770 was published on 2010-06-11 and last updated on 2026-06-16.

CVE-2010-1770

CVE-2010-1770 is a critical-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 9.3. 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-94.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Apple Safari
Published: 2010-06-11
Last modified: 2026-06-16

Description

WebKit in Apple Safari before 5.0 on Mac OS X 10.5 through 10.6 and Windows, Apple Safari before 4.1 on Mac OS X 10.4, and Google Chrome before 5.0.375.70 does not properly handle a transformation of a text node that has the IBM1147 character set, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document containing a BR element, related to a "type checking issue."

Frequently asked questions

What is CVE-2010-1770?: WebKit in Apple Safari before 5.0 on Mac OS X 10.5 through 10.6 and Windows, Apple Safari before 4.1 on Mac OS X 10.4, and Google Chrome before 5.0.375.70 does not properly handle a transformation of a text node that has the IBM1147 character set, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document containing a BR element, related to a "type checking issue."
How severe is CVE-2010-1770?: CVE-2010-1770 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2010-1770 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1770?: CVE-2010-1770 primarily affects Apple Safari. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-1770?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2010-1770 published?: CVE-2010-1770 was published on 2010-06-11 and last updated on 2026-06-16.

References

Affected products (13)

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:a:apple:webkit:*:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:10.04.4:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:11.2:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:11.3:*:*:*:*:*:*:*
cpe:2.3:o:suse:suse_linux_enterprise_desktop:10:sp3:*:*:*:*:*:*
cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp1:*:*:*:*:*:*
cpe:2.3:o:suse:suse_linux_enterprise_server:10:sp3:*:*:*:*:*:*
cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp1:*:*:*:*:*:*

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