CVE-2009-1430
CriticalPublic exploitMultiple stack-based buffer overflows in IAO.EXE in the Intel Alert Originator Service in Symantec Alert Management System 2 (AMS2), as used in Symantec System Center (SSS); Symantec AntiVirus Server; Symantec AntiVirus Central Quarantine Server; Symantec AntiVirus (SAV)…
Published Apr 29, 2009 · Updated Apr 22, 2026
Key Facts
Patch immediately- CVE-2009-1430 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Antivirus (Symantec), Antivirus Central Quarantine Server (Symantec), Client Security (Symantec) and 2 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 55% probability of exploitation in the next 30 days.
- Fixed versions are available, including Antivirus 10.1, Antivirus 9.0, Client Security 3.1.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
55%
Higher than 99.0% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
Multiple stack-based buffer overflows in IAO.EXE in the Intel Alert Originator Service in Symantec Alert Management System 2 (AMS2), as used in Symantec System Center (SSS); Symantec AntiVirus Server; Symantec AntiVirus Central Quarantine Server; Symantec AntiVirus (SAV) Corporate Edition 9 before 9.0 MR7, 10.0 and 10.1 before 10.1 MR8, and 10.2 before 10.2 MR2; Symantec Client Security (SCS) 2 before 2.0 MR7 and 3 before 3.1 MR8; and Symantec Endpoint Protection (SEP) before 11.0 MR3, allow remote attackers to execute arbitrary code via (1) a crafted packet or (2) data that ostensibly arrives from the MsgSys.exe process.
Affected Products
36 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| AntivirusSymantec | 10.0.1.1, 10.0.1, 10.0.2.1, 10.0.2.2, 10.0.2, 10.0.3, 10.0.4, 10.0.5 | 10.1 |
| Antivirus Central Quarantine ServerSymantec | See advisory | n/a |
| Client SecuritySymantec | 2.0, 3.0, 3.0.0.359, 3.0.1.1000, 3.0.1.1001, 3.0.1.1007, 3.0.1.1008, 3.0.1.1009 | 3.1 |
| Endpoint ProtectionSymantec | See advisory | 11.0 |
| System CenterSymantec | See advisory | n/a |
Patched Releases
Antivirus
10.1, 9.0
Client Security
3.1
Endpoint Protection
11.0
Timeline
Publicly disclosed
Apr 29, 2009
Last updated
Apr 22, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- exploitMSF symantec_iao.rb
- exploitExploitDB-16826
- other34856
- othersymantec-iao-bo(50177)
- othersymantec-msgsys-bo(50178)
FAQ
Common Questions.
Multiple stack-based buffer overflows in IAO.EXE in the Intel Alert Originator Service in Symantec Alert Management System 2 (AMS2), as used in Symantec System Center (SSS); Symantec AntiVirus Server; Symantec AntiVirus Central Quarantine Server; Symantec AntiVirus (SAV) Corporate Edition 9 before 9.0 MR7, 10.0 and 10…
Affected: Antivirus (Symantec) versions 10.0.1.1, 10.0.1, 10.0.2.1, 10.0.2.2, 10.0.2, 10.0.3, 10.0.4, 10.0.5; Antivirus Central Quarantine Server (Symantec); Client Security (Symantec) versions 2.0, 3.0, 3.0.0.359, 3.0.1.1000, 3.0.1.1001, 3.0.1.1007, 3.0.1.1008, 3.0.1.1009, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Antivirus 10.1, Antivirus 9.0, Client Security 3.1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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