Is CVE-2012-3899 being actively exploited?

CVE-2012-3899 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-3899?

CVE-2012-3899 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2012-3899

MEDIUM · CVSS 5.0EPSS 1.2%EU EUVD

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.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-399
EPSS score: 1.2% (69th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-3843)
Published: September 16, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-3843 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

cisco / intrusion prevention system
cisco / intrusion prevention system
cisco / intrusion prevention system
cisco / ips 4240
cisco / ips 4250 sx
cisco / ips 4255
cisco / ips 4260
cisco / ips 4270-20

References

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

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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