Adobe Flash Player Incorrect Default Permissions Vulnerability
The Firefox sandbox in Adobe Flash Player before 10.3.183.67 and 11.x before 11.6.602.171 on Windows and Mac OS X, and before 10.3.183.67 and 11.x before 11.2.202.273 on Linux, does not properly restrict privileges, which makes it easier…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 4 / 5
- KEV catalog (CISA)17 Sept 2024
- Exploited in EUVD (ENISA)17 Sept 2024
- Used by ransomwareno
- EPSS above 10 %10.5%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
The Firefox sandbox in Adobe Flash Player before 10.3.183.67 and 11.x before 11.6.602.171 on Windows and Mac OS X, and before 10.3.183.67 and 11.x before 11.2.202.273 on Linux, does not properly restrict privileges, which makes it easier for remote attackers to execute arbitrary code via crafted SWF content, as exploited in the wild in February 2013.
Affected products
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
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EPSS peak: 10.5%
References
Other exploited vulnerabilities from the same vendor
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- CVE-2026-71362Adobe Commerce and Magento Incorrect Authorization Vulnerability8.8 · Actively exploited
- CVE-2026-75650Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability5.9 · Actively exploited
- CVE-2026-48282Adobe ColdFusion Path Traversal Vulnerability7.7 · Actively exploited
- CVE-2009-3459Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability8.5 · Actively exploited
- CVE-2026-34621Adobe Acrobat and Reader Prototype Pollution Vulnerability4.9 · Background exploitation