How severe is CVE-2012-3919?

CVE-2012-3919 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-3919 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3919?

CVE-2012-3919 affects Cisco Application Control Engine Module. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-3919?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-3919 published?

CVE-2012-3919 was published on 2012-09-16 and last updated on 2026-06-16.

CVE-2012-3919

CVE-2012-3919 is a medium-severity vulnerability in Cisco Application Control Engine Module with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Application Control Engine Module
Published: 2012-09-16
Last modified: 2026-06-16

Description

The Cisco Application Control Engine (ACE) module 3.0 for Cisco Catalyst switches and Cisco routers does not properly monitor Load Balancer (LB) queues, which allows remote attackers to cause a denial of service (incorrect memory access and module reboot) via application traffic, aka Bug ID CSCtw70879.

Frequently asked questions

What is CVE-2012-3919?: The Cisco Application Control Engine (ACE) module 3.0 for Cisco Catalyst switches and Cisco routers does not properly monitor Load Balancer (LB) queues, which allows remote attackers to cause a denial of service (incorrect memory access and module reboot) via application traffic, aka Bug ID CSCtw70879.
How severe is CVE-2012-3919?: CVE-2012-3919 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-3919 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3919?: CVE-2012-3919 affects Cisco Application Control Engine Module. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-3919?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3919 published?: CVE-2012-3919 was published on 2012-09-16 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:cisco:application_control_engine_module:3.0:*:*:*:*:*:*:*

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