CVE-2007-6016

Symantec Backup Exec for Windows Server <12.0.1364 - Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2007-6016. PoCs published by Metasploit, Elazar, including Metasploit module exploits/windows/browser/symantec_backupexec_pvcalendar.

AI-analyzed exploit summary This is a Metasploit module exploiting a stack buffer overflow in Symantec BackupExec Calendar Control via an overly long string to the '_DOWText0' property. It delivers a payload through a malicious HTML page with embedded JavaScript to achieve remote code execution.

Description

Multiple stack-based buffer overflows in the PVATLCalendar.PVCalendar.1 ActiveX control in pvcalendar.ocx in the scheduler component in the Media Server in Symantec Backup Exec for Windows Server (BEWS) 11d 11.0.6235 and 11.0.7170, and 12.0 12.0.1364, allow remote attackers to execute arbitrary code via a long (1) _DOWText0, (2) _DOWText1, (3) _DOWText2, (4) _DOWText3, (5) _DOWText4, (6) _DOWText5, (7) _DOWText6, (8) _MonthText0, (9) _MonthText1, (10) _MonthText2, (11) _MonthText3, (12) _MonthText4, (13) _MonthText5, (14) _MonthText6, (15) _MonthText7, (16) _MonthText8, (17) _MonthText9, (18) _MonthText10, or (19) _MonthText11 property value when executing the Save method. NOTE: the vendor states "Authenticated user involvement required," but authentication is not needed to attack a client machine that loads this control.

Exploits (3)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotewindows
https://www.exploit-db.com/exploits/16582

This is a Metasploit module exploiting a stack buffer overflow in Symantec BackupExec Calendar Control via an overly long string to the '_DOWText0' property. It delivers a payload through a malicious HTML page with embedded JavaScript to achieve remote code execution.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Symantec BackupExec Calendar Control (pvcalendar.ocx)
No auth needed
Prerequisites: Target must have Symantec BackupExec Calendar Control installed · Target must visit a malicious webpage or be redirected to it
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Elazar · htmlremotewindows
https://www.exploit-db.com/exploits/5205

This is a buffer overflow exploit targeting Symantec BackupExec Calendar Control (PVCalendar.ocx) via a maliciously crafted HTML file. It leverages heap spraying and shellcode execution to achieve remote code execution (RCE) on vulnerable systems.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Symantec BackupExec Calendar Control (PVCalendar.ocx) version 10.0.0.17
No auth needed
Prerequisites: Vulnerable version of PVCalendar.ocx installed · Victim must open the malicious HTML file in Internet Explorer
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC NORMAL
rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/symantec_backupexec_pvcalendar.rb

This Metasploit module exploits a stack buffer overflow in Symantec BackupExec Calendar Control (pvcalendar.ocx) via an overly long string sent to the '_DOWText0' property, allowing arbitrary code execution. It uses JavaScript to trigger the vulnerability and deliver a payload.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Symantec BackupExec Calendar Control (pvcalendar.ocx)
No auth needed
Prerequisites: Target must have Symantec BackupExec Calendar Control installed · Target must visit a malicious webpage or open a malicious HTML file
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (10)

Core 10
Core References
Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/26904
Various Sources x_refsource_confirm
http://seer.support.veritas.com/docs/308669.htm
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1019524
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2008/0718
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27885
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/5205
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2008/2672

Scores

EPSS 0.5042
EPSS Percentile 98.8%

Details

CWE
CWE-119
Status published
Products (2)
symantec/backup_exec_for_windows_server 11d 11.0.6235 (2 CPE variants)
symantec/backup_exec_for_windows_server 12.0 12.0.1364
Published Feb 29, 2008
Tracked Since Feb 18, 2026