Vulnerability Monitor

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CVE-2007-0918

The ATOMIC.TCP signature engine in the Intrusion Prevention System (IPS) feature for Cisco IOS 12.4XA, 12.3YA, 12.3T, and other trains allows remote attackers to cause a denial of service (IPS crash and traffic loss) via unspecified manipulations that are not properly handled by the regular expression feature, as demonstrated using the 3123.0 (Netbus Pro Traffic) signature.

Security Impact Summary

CVE-2007-0918 is a security vulnerability that . Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2007, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2007-02-14T02:28:00.000

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.1 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

6.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	cisco	ios	12.3t	Yes
Operating System	cisco	ios	12.3xq	Yes
Operating System	cisco	ios	12.3xr	Yes
Operating System	cisco	ios	12.3xs	Yes
Operating System	cisco	ios	12.3xw	Yes
Operating System	cisco	ios	12.3xx	Yes
Operating System	cisco	ios	12.3xy	Yes
Operating System	cisco	ios	12.3ya	Yes
Operating System	cisco	ios	12.3yd	Yes
Operating System	cisco	ios	12.3yg	Yes
Operating System	cisco	ios	12.3yh	Yes
Operating System	cisco	ios	12.3yi	Yes
Operating System	cisco	ios	12.3yj	Yes
Operating System	cisco	ios	12.3yk	Yes
Operating System	cisco	ios	12.3ym	Yes
Operating System	cisco	ios	12.3yq	Yes
Operating System	cisco	ios	12.3ys	Yes
Operating System	cisco	ios	12.3yt	Yes
Operating System	cisco	ios	12.3yx	Yes
Operating System	cisco	ios	12.3yz	Yes
Operating System	cisco	ios	12.4	Yes
Operating System	cisco	ios	12.4mr	Yes
Operating System	cisco	ios	12.4t	Yes
Operating System	cisco	ios	12.4xa	Yes
Operating System	cisco	ios	12.4xb	Yes

References

http://osvdb.org/33053 Broken Link ([email protected])
http://secunia.com/advisories/24142 Third Party Advisory ([email protected])
http://www.cisco.com/en/US/products/products_security_advisory09186a00807e0a5b.shtml Vendor Advisory ([email protected])
http://www.cisco.com/en/US/products/products_security_response09186a00807e0a5e.html Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/22549 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id?1017631 Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://www.vupen.com/english/advisories/2007/0597 Permissions Required, Third Party Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/32474 Third Party Advisory, VDB Entry ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5832 Broken Link ([email protected])
http://osvdb.org/33053 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24142 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.cisco.com/en/US/products/products_security_advisory09186a00807e0a5b.shtml Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.cisco.com/en/US/products/products_security_response09186a00807e0a5e.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/22549 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1017631 Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2007/0597 Permissions Required, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/32474 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5832 Broken Link (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.