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Threats / Adobe / CVE-2012-5054
CVE-2012-5054 · EUVD no mirror located · GCVE no mirror located Verified 2026-06-22

Adobe Flash Player vulnerability

Adobe Flash Player integer overflow vulnerability allowing remote code execution via malformed arguments. Exploited in the wild.

Verdict

Today item — known-exploited.

Integer overflow in Flash Player enables remote attackers to achieve arbitrary code execution through specially crafted input. Active exploitation in the wild poses immediate risk to users running vulnerable versions.

CISA KEV Yes · 2022-06-083EPSS 0.21194 (verify live)4
01

Is it exploitable?

— the evidence, ranked above the score
Reported exploitation
2 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 2022-06-08).
CISA KEV ↗Confirmed
Probability (EPSS)
EPSS 0.21194 — 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.
NVD ↗Reported
Weakness (CWE)
Mapped to CWE-189 CWE-189.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
NVD ↗Reported
02

Who’s exploiting it?

— attribution turns risk into urgency
Attribution 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 board
1

Front door — unauthenticated access narrative 1

Attacker
I craft malformed arguments that trigger an integer overflow condition in Flash Player's parsing logic.
Business
Attackers gain arbitrary code execution capability on affected systems, enabling data theft, malware installation, or lateral movement.
2

Keys to the kingdom — privilege/identity takeover narrative 2

Attacker
I deliver the exploit payload through web content, email attachments, or compromised websites hosting malicious Flash content.
Business
Enterprise endpoints and consumer devices become compromised at scale, creating incident response burden and potential compliance violations.
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

Coverage & confidence

— what we know, and what we don’t

Established (cited)

  • KEV listing (CISA)
  • EPSS probability (FIRST)
  • 2 reported-exploitation source(s)
  • CWE weakness mapping (NVD)
  • Catalogued by adobe (CNA)
  • Coverage gaps — stated, not hidden

  • No EUVD / GCVE mirror in feed — single-authority dependency for the identifier.
  • EPSS & exposure are time-varying; verify live at the source.
  • Threat-actor attribution not established from feed data — absence of a name is not absence of compromise.
  • No finder/reporter credit recorded in the public CVE entry — the work behind this find is unattributed.
  • Disclosure & credit2
    Catalogued by adobeCNA
    Credited with finding itNo finder named in the public CVE record — the work behind this find is unattributed.