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Security AgentApplication · Cisco

CVE-2007-5580

HIGH · 10.0 CVSS v2.0 Published 2007-12-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Buffer overflow in a certain driver in Cisco Security Agent 4.5.1 before 4.5.1.672, 5.0 before 5.0.0.225, 5.1 before 5.1.0.106, and 5.2 before 5.2.0.238 on Windows allows remote attackers to execute arbitrary code via a crafted SMB packet in a TCP session on port (1) 139 or (2) 445.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Buffer overflow vulnerability in the SMB packet parsing driver of Cisco Security Agent versions 4.5.1 before 4.5.1.672, 5.0 before 5.0.0.225, 5.1 before 5.1.0.106, and 5.2 before 5.2.0.238 on Windows. Remote attackers can send crafted SMB packets on ports 139 or 445 to trigger the overflow and execute arbitrary code with kernel-level privileges.

MitigationApply vendor patches to upgrade to fixed versions (4.5.1.672, 5.0.0.225, 5.1.0.106, or 5.2.0.238 or later). As an interim control, block or filter SMB traffic (ports 139/445) at network perimeters to prevent remote exploitation.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Security AgentApplication
Affected:= 2.1= 3= 4.0= 4.0.1= 4.0.2= 4.0.3= 4.0.3.728= 4.5= 4.5.1= 4.5.1.639= 4.5.1.657= 4.5.1.659

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Cisco Security Agent version
    Use system inventory tools, registry queries, or the Cisco agent management console to retrieve the installed version of Cisco Security Agent. Common locations include Windows Registry under HKLM\SOFTWARE\Cisco\Security Agent or the agent's own status interface.
    Affected if The installed version is 4.5.1.639, 4.5.1.657, 4.5.1.659, or any 5.0.x, 5.1.x, or 5.2.x version below the fixed releases (5.0.0.225, 5.1.0.106, 5.2.0.238).
  2. Verify SMB service exposure
    Scan network listening ports on the local system to determine if ports 139 or 445 are open and listening. Use commands such as netstat -an or port scanning tools to check for SMB service availability.
    Affected if Ports 139 or 445 are open and reachable, allowing external SMB packet delivery to the vulnerable driver.
  3. Confirm SMB packet parsing driver is active
    Check the Cisco Security Agent driver status for the SMB parsing module. This can be verified through the agent's system service information or driver enumeration utilities.
    Affected if The SMB packet parsing driver is loaded and processing SMB traffic on the affected system.

A system is affected if it runs any vulnerable Cisco Security Agent version (4.5.1.639, 4.5.1.657, 4.5.1.659, or unpatched 5.0/5.1/5.2) AND has SMB ports 139/445 exposed, allowing remote attackers to send crafted packets to trigger the buffer overflow.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor patches to upgrade to fixed versions (4.5.1.672, 5.0.0.225, 5.1.0.106, or 5.2.0.238 or later). As an interim control, block or filter SMB traffic (ports 139/445) at network perimeters to prevent remote exploitation.

Recommended fix High confidence

Cisco Security Agent 5.2.0.238 or later (or the equivalent patched version for your current branch: 4.5.1.672, 5.0.0.225, or 5.1.0.106)

  1. 1. Identify the currently installed Cisco Security Agent version by checking the program files directory or using system inventory tools
  2. 2. Determine which version branch is currently in use (4.5.1, 5.0, 5.1, or 5.2)
  3. 3. For version 4.5.1: Upgrade to version 4.5.1.672 or later
  4. 4. For version 5.0: Upgrade to version 5.0.0.225 or later
  5. 5. For version 5.1: Upgrade to version 5.1.0.106 or later
  6. 6. For version 5.2: Upgrade to version 5.2.0.238 or later
  7. 7. If running versions 2.1, 3, 4.0, or 4.0.1 mentioned in the affected products list, note these are older branches; consider upgrading to one of the supported version branches (5.x series) and applying the appropriate patch level
  8. 8. After upgrade, verify the agent is running and protecting the system
Caveat Cisco Security Agent has been discontinued; ensure compatibility with your Windows environment before upgrading; backup current configuration

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Security Agent Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2007-5580 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data