How severe is CVE-2007-3456?

CVE-2007-3456 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2007-3456 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 56% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3456?

CVE-2007-3456 primarily affects Adobe Flash Player. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-3456?

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-2007-3456 published?

CVE-2007-3456 was published on 2007-07-11 and last updated on 2026-06-16.

CVE-2007-3456

CVE-2007-3456 is a critical-severity vulnerability in Adobe Flash Player with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 56% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 56% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Adobe Flash Player
Published: 2007-07-11
Last modified: 2026-06-16

Description

Integer overflow in Adobe Flash Player 9.0.45.0 and earlier might allow remote attackers to execute arbitrary code via a large length value for a (1) Long string or (2) XML variable type in a crafted (a) FLV or (b) SWF file, related to an "input validation error," including a signed comparison of values that are assumed to be non-negative.

Frequently asked questions

What is CVE-2007-3456?: Integer overflow in Adobe Flash Player 9.0.45.0 and earlier might allow remote attackers to execute arbitrary code via a large length value for a (1) Long string or (2) XML variable type in a crafted (a) FLV or (b) SWF file, related to an "input validation error," including a signed comparison of values that are assumed to be non-negative.
How severe is CVE-2007-3456?: CVE-2007-3456 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-3456 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 56% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3456?: CVE-2007-3456 primarily affects Adobe Flash Player. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-3456?: 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-2007-3456 published?: CVE-2007-3456 was published on 2007-07-11 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:9.0.16:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:9.0.18d60:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:9.0.20:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:9.0.20.0:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:9.0.28:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:9.0.28.0:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:9.0.31:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:9.0.31.0:*:*:*:*:*:*:*

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Other CWE-189 (Numeric Errors) vulnerabilities

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CVE-2015-6575 — Critical (CVSS 10.0): SampleTable.cpp in libstagefright in Android before 5.1.1 LMY48I does not properly consider integer promotion, which…
CVE-2015-3864 — Critical (CVSS 10.0): Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in…
CVE-2015-3836 — Critical (CVSS 10.0): The Parse_wave function in arm-wt-22k/lib_src/eas_mdls.c in the Sonivox DLS-to-EAS converter in Android before 5.1.1…
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Browse all CWE-189 (Numeric Errors) vulnerabilities →