CVE-2009-3791

Unspecified vulnerability in Adobe Flash Media Server (FMS) before 3.5.3 allows attackers to cause a denial of service (resource exhaustion) via unknown vectors.

Published: 2009-12-21 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-3791 is rated Moderate Risk (60.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.59%). EPSS rose +1.55% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-3791

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.04% 2.59% +1.55%
2 2025-03-30 1.50% 1.04% -0.46%
3 2025-03-29 — 1.50% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-3791

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-3791

Affected software / configurations for CVE-2009-3791

Vendor Product Version Raw CPE
adobe flash_media_server <= 3.5.2 cpe:2.3:a:adobe:flash_media_server:*:*:*:*:*:*:*:*
adobe flash_media_server 2.0 cpe:2.3:a:adobe:flash_media_server:2.0:*:*:*:*:*:*:*
adobe flash_media_server 2.0.1 cpe:2.3:a:adobe:flash_media_server:2.0.1:*:*:*:*:*:*:*
adobe flash_media_server 2.0.2 cpe:2.3:a:adobe:flash_media_server:2.0.2:*:*:*:*:*:*:*
adobe flash_media_server 2.0.3 cpe:2.3:a:adobe:flash_media_server:2.0.3:*:*:*:*:*:*:*
adobe flash_media_server 2.0.4 cpe:2.3:a:adobe:flash_media_server:2.0.4:*:*:*:*:*:*:*
adobe flash_media_server 2.0.5 cpe:2.3:a:adobe:flash_media_server:2.0.5:*:*:*:*:*:*:*
adobe flash_media_server 3.0 cpe:2.3:a:adobe:flash_media_server:3.0:*:*:*:*:*:*:*
adobe flash_media_server 3.0.1 cpe:2.3:a:adobe:flash_media_server:3.0.1:*:*:*:*:*:*:*
adobe flash_media_server 3.0.2 cpe:2.3:a:adobe:flash_media_server:3.0.2:*:*:*:*:*:*:*
adobe flash_media_server 3.0.3 cpe:2.3:a:adobe:flash_media_server:3.0.3:*:*:*:*:*:*:*
adobe flash_media_server 3.0.4 cpe:2.3:a:adobe:flash_media_server:3.0.4:*:*:*:*:*:*:*
adobe flash_media_server 3.5.1 cpe:2.3:a:adobe:flash_media_server:3.5.1:*:*:*:*:*:*:*

References for CVE-2009-3791

cvelogic Threat Intelligence