VulnSocial

CVE-2012-0334Active Exploitation(cisco / ironport_web_security_appliance)

LOWCVSS 6.4 · MEDIUM

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

  • Prioritize remediation for cisco ironport_web_security_appliance systems immediately
  • Assume compromise if assets are exposed
  • Track advisory updates for patch or workaround availability

Recommended action window: Immediate (within 24h)

NVD description

Cisco IronPort Web Security Appliance AsyncOS software prior to 7.5 has a SSL Certificate Caching vulnerability which could allow man-in-the-middle attacks

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3.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-20

Priority

LOW

Exploitation

ACTIVE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • ironport_web_security_appliance

Threat summary

  • Active exploitation appears in 1 classified signals
  • 1 mentions across 1 observed day

What's happening

  • Active exploitation reported across 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
cisco
Products
ironport_web_security_appliance

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-02-17: 1Active Exploitation · 2026-02-17: 1Technical Details · 2026-02-17: 102-17
Signal classification1 categories
Active Exploitation
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • 0day Signal@0dayPublishing
    Active Exploitation

    🔍 CVE-2012-0334: Cisco (CVS... Ancient AsyncOS SSL cert caching flaw enables trivial MITM attacks - still seeing these in prod environments a decade later. #legacytech #MITM. https://zerodaysignal.com/vulnerability/CVE-2012-0334 #netsec #vulnerability #CVE #sysadmin #zeroday

    Post summary

    CVE-2012-0334 is a legacy SSL certificate caching flaw in Cisco AsyncOS that continues to be exploited for man‑in‑the‑middle attacks in production, with no patch or PoC details provided in the text.

    0000048
    131 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appciscoironport_web_security_appliance---

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