How severe is CVE-2008-2640?

CVE-2008-2640 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2008-2640 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-2640?

CVE-2008-2640 primarily affects Adobe Flex. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-2640?

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

When was CVE-2008-2640 published?

CVE-2008-2640 was published on 2008-06-18 and last updated on 2026-06-16.

CVE-2008-2640

CVE-2008-2640 is a medium-severity vulnerability in Adobe Flex 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-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Adobe Flex
Published: 2008-06-18
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in the Flex 3 History Management feature in Adobe Flex 3.0.1 SDK and Flex Builder 3, and generated applications, allow remote attackers to inject arbitrary web script or HTML via the anchor identifier to (1) client-side-detection-with-history/history/historyFrame.html, (2) express-installation-with-history/history/historyFrame.html, or (3) no-player-detection-with-history/history/historyFrame.html in templates/html-templates/. NOTE: Firefox 2.0 and possibly other browsers prevent exploitation.

Frequently asked questions

What is CVE-2008-2640?: Multiple cross-site scripting (XSS) vulnerabilities in the Flex 3 History Management feature in Adobe Flex 3.0.1 SDK and Flex Builder 3, and generated applications, allow remote attackers to inject arbitrary web script or HTML via the anchor identifier to (1) client-side-detection-with-history/history/historyFrame.html, (2) express-installation-with-history/history/historyFrame.html, or (3) no-player-detection-with-history/history/historyFrame.html in templates/html-templates/. NOTE: Firefox 2.0 and possibly other browsers prevent exploitation.
How severe is CVE-2008-2640?: CVE-2008-2640 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2008-2640 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-2640?: CVE-2008-2640 primarily affects Adobe Flex. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-2640?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-2640 published?: CVE-2008-2640 was published on 2008-06-18 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:adobe:flex:3.0.1:*:sdk:*:*:*:*:*
cpe:2.3:a:adobe:flex_builder:3:*:*:*:*:*:*:*

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