CVE-2009-5039

Name: CVE-2009-5039
Creator: NVD / NIST
Published: 2011-01-07T19:00:16.89+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.30%

Last modified Jun 16, 2026

CVE-2009-5039 is a vulnerability of currently unknown severity. Memory leak in the gk_circuit_info_do_in_acf function in the H.323 implementation in Cisco IOS before 15.0(1)XA allows remote attackers to cause a denial of service (memory consumption) via a large number of calls over a long duration, as demonstrated by InterZone Clear Token (IZCT) test traffic, aka Bug ID CSCsz72535.. EPSS estimates a 1.30% chance of exploitation in the next 30 days.

Description

Memory leak in the gk_circuit_info_do_in_acf function in the H.323 implementation in Cisco IOS before 15.0(1)XA allows remote attackers to cause a denial of service (memory consumption) via a large number of calls over a long duration, as demonstrated by InterZone Clear Token (IZCT) test traffic, aka Bug ID CSCsz72535.

Metrics

EPSS Probability

1.30%

66.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-772

Affected Software

Vendor	Product	Versions
Cisco	Ios	< 15.0\(1\)xa

References

http://www.cisco.com/en/US/docs/ios/15_0/15_0x/15_01_XA/rn800xa.pdfRelease Notes, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/64731Third Party Advisory, VDB Entry
http://www.cisco.com/en/US/docs/ios/15_0/15_0x/15_01_XA/rn800xa.pdfRelease Notes, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/64731Third Party Advisory, VDB Entry

Timeline

Published: Jan 7, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-5039?

How severe is CVE-2009-5039?

Severity scoring for CVE-2009-5039 is pending analysis. The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.

How do I fix CVE-2009-5039?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-5039?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST