Threats / Adobe / CVE-2013-0643
CVE-2013-0643
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Adobe Flash Player vulnerability
Adobe Flash Player contains an incorrect default permissions vulnerability in the Firefox sandbox that allows remote attackers to execute arbitrary code through crafted SWF content.
Verdict
Today item — known-exploited.
A remote attacker can exploit incorrect sandbox permissions in Firefox to execute arbitrary code by delivering malicious SWF files. This vulnerability has been actively exploited in the wild.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
3 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-09-17).
Probability (EPSS)
EPSS 0.10533 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Adobe, Flash Player. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-264 Permissions/Privileges/Access Control — weakness family: Authorization / access control.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious SWF file that exploits the Firefox sandbox permission misconfiguration in Flash Player.
Business
An attacker gains the ability to run arbitrary code on victim systems, enabling data theft, malware installation, or system compromise.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I distribute the SWF through web content, email, or compromised websites to reach target users.
Business
Widespread infection risk across user base exposes the organization to data breaches, operational disruption, and reputational damage.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05