How severe is CVE-2012-3899?

CVE-2012-3899 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-3899 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-2012-3899?

CVE-2012-3899 primarily affects Cisco Intrusion Prevention System. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3899?

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

When was CVE-2012-3899 published?

CVE-2012-3899 was published on 2012-09-16 and last updated on 2026-06-16.

CVE-2012-3899

CVE-2012-3899 is a medium-severity vulnerability in Cisco Intrusion Prevention System 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 Intrusion Prevention System
Published: 2012-09-16
Last modified: 2026-06-16

Description

sensorApp on Cisco IPS 4200 series sensors 6.0, 6.2, and 7.0 does not properly allocate memory, which allows remote attackers to cause a denial of service (memory corruption and process crash, and traffic-inspection outage) via network traffic, aka Bug ID CSCtn23051.

Frequently asked questions

What is CVE-2012-3899?: sensorApp on Cisco IPS 4200 series sensors 6.0, 6.2, and 7.0 does not properly allocate memory, which allows remote attackers to cause a denial of service (memory corruption and process crash, and traffic-inspection outage) via network traffic, aka Bug ID CSCtn23051.
How severe is CVE-2012-3899?: CVE-2012-3899 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-3899 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-2012-3899?: CVE-2012-3899 primarily affects Cisco Intrusion Prevention System. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3899?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3899 published?: CVE-2012-3899 was published on 2012-09-16 and last updated on 2026-06-16.

References

http://www.cisco.com/web/software/282549758/51927/IPS-6_2-4-E4-readme.txt

Affected products (8)

cpe:2.3:a:cisco:intrusion_prevention_system:6.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:intrusion_prevention_system:6.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:intrusion_prevention_system:7.0:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ips_4240:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ips_4250_sx:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ips_4255:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ips_4260:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ips_4270-20:*:*:*:*:*:*:*:*

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