How severe is CVE-2013-5331?

CVE-2013-5331 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2013-5331 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 72% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-5331?

CVE-2013-5331 primarily affects Adobe Flash Player. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-5331?

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-2013-5331 published?

CVE-2013-5331 was published on 2013-12-11 and last updated on 2026-06-16.

CVE-2013-5331

CVE-2013-5331 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 72% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 72% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Adobe Flash Player
Published: 2013-12-11
Last modified: 2026-06-16

Description

Adobe Flash Player before 11.7.700.257 and 11.8.x and 11.9.x before 11.9.900.170 on Windows and Mac OS X and before 11.2.202.332 on Linux, Adobe AIR before 3.9.0.1380, Adobe AIR SDK before 3.9.0.1380, and Adobe AIR SDK & Compiler before 3.9.0.1380 allow remote attackers to execute arbitrary code via crafted .swf content that leverages an unspecified "type confusion," as exploited in the wild in December 2013.

Frequently asked questions

What is CVE-2013-5331?: Adobe Flash Player before 11.7.700.257 and 11.8.x and 11.9.x before 11.9.900.170 on Windows and Mac OS X and before 11.2.202.332 on Linux, Adobe AIR before 3.9.0.1380, Adobe AIR SDK before 3.9.0.1380, and Adobe AIR SDK & Compiler before 3.9.0.1380 allow remote attackers to execute arbitrary code via crafted .swf content that leverages an unspecified "type confusion," as exploited in the wild in December 2013.
How severe is CVE-2013-5331?: CVE-2013-5331 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2013-5331 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 72% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-5331?: CVE-2013-5331 primarily affects Adobe Flash Player. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-5331?: 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-2013-5331 published?: CVE-2013-5331 was published on 2013-12-11 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:air:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:air_sdk:*:*:*:*:*:*:*:*

More vulnerabilities in Adobe Flash Player

CVE-2015-8459 — Critical (CVSS 10.0): Adobe Flash Player before 18.0.0.324 and 19.x and 20.x before 20.0.0.267 on Windows and OS X and before 11.2.202.559 on…
CVE-2015-8457 — Critical (CVSS 10.0): Stack-based buffer overflow in Adobe Flash Player before 18.0.0.268 and 19.x and 20.x before 20.0.0.228 on Windows and…
CVE-2015-8455 — Critical (CVSS 10.0): Adobe Flash Player before 18.0.0.268 and 19.x and 20.x before 20.0.0.228 on Windows and OS X and before 11.2.202.554 on…
CVE-2015-8454 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Flash Player before 18.0.0.268 and 19.x and 20.x before 20.0.0.228 on Windows and…
CVE-2015-8452 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Flash Player before 18.0.0.268 and 19.x and 20.x before 20.0.0.228 on Windows and…
CVE-2015-8451 — Critical (CVSS 10.0): Adobe Flash Player before 18.0.0.268 and 19.x and 20.x before 20.0.0.228 on Windows and OS X and before 11.2.202.554 on…

All CVEs affecting Adobe Flash Player →

Other CWE-94 (Code Injection) vulnerabilities

CVE-2026-57624 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.46 versions.
CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
CVE-2026-53576 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the authentication filter…
CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

Browse all CWE-94 (Code Injection) vulnerabilities →