HIGH
Memory leak in the H.323 inspection feature in the Zone-Based Firewall in Cisco IOS 12.4, 15.0, 15.1, and 15.2 allows remote attackers to cause a denial of service (memory consumption or device reload) via malformed transit H.323 traffic, aka Bug ID CSCtq45553
Published Mar 29, 2012
7.8
HIGHCVSS 2.0
EPSS 1.50%
Description
Memory leak in the H.323 inspection feature in the Zone-Based Firewall in Cisco IOS 12.4, 15.0, 15.1, and 15.2 allows remote attackers to cause a denial of service (memory consumption or device reload) via malformed transit H.323 traffic, aka Bug ID CSCtq45553.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.50% 0.01502
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01502
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.50% (0.01502) | 73.36th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.52% (0.01519) | 71.18th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.80% (0.00801) | 72.42th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.28% (0.01282) | 86.34th | v3 (v2023.03.01) |
| May 3, 2024 | 1.28% (0.01282) | 85.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.28% (0.01282) | 83.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
Weaknesses (1)
References (5)
- http://secunia.com/advisories/48608 third-party-advisoryx_refsource_SECUNIA
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-zbfw vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securityfocus.com/bid/52753 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1026861 vdb-entryx_refsource_SECTRACK
- https://exchange.xforce.ibmcloud.com/vulnerabilities/74436 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/48608 | third-party-advisoryx_refsource_SECUNIA | |
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-zbfw | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securityfocus.com/bid/52753 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1026861 | vdb-entryx_refsource_SECTRACK | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/74436 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Mar 29, 2012
Updated Aug 6, 2024
Reserved Jan 4, 2012
Link CVE-2012-0388
CISA Vulnrichment
Updated n/a