HDNLRSVC.EXE in the Intel Alert Handler service (aka Symantec Intel Handler service) in Intel Alert Management System (aka AMS or AMS2), as
HDNLRSVC.EXE in the Intel Alert Handler service (aka Symantec Intel Handler service) in Intel Alert Management System (aka AMS or AMS2), as used in Symantec AntiVirus Corporate Edition (SAVCE) 10.x before 10.1 MR10, Symantec System Center (SSC) 10.x, and Symantec Quarantine Server 3.5 and 3.6, allows remote attackers to execute arbitrary programs by sending msgsys.exe a UNC share pathname, which is used directly in a CreateProcessA (aka CreateProcess) call.
Noroxi analysis
No Noroxi analysis for this record yet
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We use this product, ask for help- Published
- Jan 31, 2011
- Updated
- Jun 16, 2026
- EPSS
- 34.5% · 98th percentile
- CWE
- CWE-20
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Report tools
Action score
47
Plan
Add it to your regular patch cycle.
- CVSS
- 37 / 40 · 9.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 10 / 30 · 34.5%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| symantec | antivirus | cpe:2.3:a:symantec:antivirus |
| symantec | system center | cpe:2.3:a:symantec:system_center |
| symantec | antivirus central quarantine server | cpe:2.3:a:symantec:antivirus_central_quarantine_server |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- symantec antivirus10.0
- symantec antivirus10.0.1
- symantec antivirus10.0.1.1
- symantec antivirus10.0.1.2
- symantec antivirus10.0.2
- symantec antivirus10.0.2.1
- symantec antivirus10.0.2.2
- symantec antivirus10.0.3
- symantec antivirus10.0.4
- symantec antivirus10.0.5
- symantec antivirus10.0.6
- symantec antivirus10.0.7
- symantec antivirus10.0.8
- symantec antivirus10.0.9
- symantec antivirus10.1
- symantec antivirus10.1.0.1
- symantec antivirus10.1.4
- symantec antivirus10.1.4.1
- symantec antivirus10.1.5
- symantec antivirus10.1.5.1
Same product
symantec: all recordsOther highest-scoring records for the same primary product.
- CVE-2009-1429The Intel LANDesk Common Base Agent (CBA) in Symantec Alert Management System 2 (AMS2), as used in Symantec System Center (SSS); Symantec An66This week
- CVE-2009-1430Multiple stack-based buffer overflows in IAO.EXE in the Intel Alert Originator Service in Symantec Alert Management System 2 (AMS2), as used54Plan
- CVE-2010-0108Buffer overflow in the cliproxy.objects.1 ActiveX control in the Symantec Client Proxy (CLIproxy.dll) in Symantec AntiVirus 10.0.x, 10.1.x b46Plan
- CVE-2012-4953The decomposer engine in Symantec Endpoint Protection (SEP) 11.0, Symantec Endpoint Protection Small Business Edition 12.0, Symantec AntiVir39Monitor
- CVE-2009-1431XFR.EXE in the Intel File Transfer service in the console in Symantec Alert Management System 2 (AMS2), as used in Symantec System Center (S39Monitor
- CVE-2011-0688Intel Alert Management System (aka AMS or AMS2), as used in Symantec Antivirus Corporate Edition (SAVCE) 10.x before 10.1 MR10, Symantec Sys38Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Metasploit module | exploit/windows/antivirus/ams_hndlrsvcSymantec System Center Alert Management System (hndlrsvc.exe) Arbitrary Command Executionexploit | 2010-07-26 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Metasploit-190 d
- Published
- TodaySep 30, 2026+5721 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- secunia.com/advisories/43099
- secunia.com/advisories/43106
- securitytracker.com/id?1024997
- www.securityfocus.com/bid/45935
- www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2011&suid=20110126_01
- www.vupen.com/english/advisories/2011/0234
- www.zerodayinitiative.com/advisories/ZDI-11-029
- exchange.xforce.ibmcloud.com/vulnerabilities/64942
- exchange.xforce.ibmcloud.com/vulnerabilities/64943
Vendor advisories and official records. Exploit/PoC links are deliberately left out.