How severe is CVE-2008-2258?

CVE-2008-2258 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2008-2258 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 35% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-2258?

CVE-2008-2258 primarily affects Microsoft Internet Explorer. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-2258?

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-2008-2258 published?

CVE-2008-2258 was published on 2008-08-13 and last updated on 2026-06-16.

CVE-2008-2258

CVE-2008-2258 is a critical-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 35% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 35% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Microsoft Internet Explorer
Published: 2008-08-13
Last modified: 2026-06-16

Description

Microsoft Internet Explorer 5.01, 6, and 7 accesses uninitialized memory in certain conditions, which allows remote attackers to cause a denial of service (crash) and execute arbitrary code via vectors related to a document object "appended in a specific order" with "particular functions ... performed on" document objects, aka "HTML Objects Memory Corruption Vulnerability" or "Table Layout Memory Corruption Vulnerability," a different vulnerability than CVE-2008-2257.

Frequently asked questions

What is CVE-2008-2258?: Microsoft Internet Explorer 5.01, 6, and 7 accesses uninitialized memory in certain conditions, which allows remote attackers to cause a denial of service (crash) and execute arbitrary code via vectors related to a document object "appended in a specific order" with "particular functions ... performed on" document objects, aka "HTML Objects Memory Corruption Vulnerability" or "Table Layout Memory Corruption Vulnerability," a different vulnerability than CVE-2008-2257.
How severe is CVE-2008-2258?: CVE-2008-2258 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2008-2258 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 35% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-2258?: CVE-2008-2258 primarily affects Microsoft Internet Explorer. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-2258?: 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-2008-2258 published?: CVE-2008-2258 was published on 2008-08-13 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:microsoft:internet_explorer:5.01:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*

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