How severe is CVE-2008-1026?

CVE-2008-1026 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2008-1026 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-2008-1026?

CVE-2008-1026 primarily affects Apple Safari. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-1026?

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

When was CVE-2008-1026 published?

CVE-2008-1026 was published on 2008-04-17 and last updated on 2026-06-16.

CVE-2008-1026

CVE-2008-1026 is a medium-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 6.8. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Apple Safari
Published: 2008-04-17
Last modified: 2026-06-16

Description

Integer overflow in the PCRE regular expression compiler (JavaScriptCore/pcre/pcre_compile.cpp) in Apple WebKit, as used in Safari before 3.1.1, allows remote attackers to execute arbitrary code via a regular expression with large, nested repetition counts, which triggers a heap-based buffer overflow.

Frequently asked questions

What is CVE-2008-1026?: Integer overflow in the PCRE regular expression compiler (JavaScriptCore/pcre/pcre_compile.cpp) in Apple WebKit, as used in Safari before 3.1.1, allows remote attackers to execute arbitrary code via a regular expression with large, nested repetition counts, which triggers a heap-based buffer overflow.
How severe is CVE-2008-1026?: CVE-2008-1026 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2008-1026 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-2008-1026?: CVE-2008-1026 primarily affects Apple Safari. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-1026?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-1026 published?: CVE-2008-1026 was published on 2008-04-17 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:apple:safari:3:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:3.1:*:*:*:*:*:*:*

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