How severe is CVE-2008-5407?

CVE-2008-5407 has a CVSS 2.0 base score of 9.4, rated critical severity.

Is CVE-2008-5407 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-5407?

CVE-2008-5407 primarily affects Symantec Backup Exec For Windows Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-5407?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2008-5407 published?

CVE-2008-5407 was published on 2008-12-10 and last updated on 2026-06-16.

CVE-2008-5407

CVE-2008-5407 is a critical-severity vulnerability in Symantec Backup Exec For Windows Server with a CVSS 2.0 base score of 9.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 2.0 base score 9.4)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Symantec Backup Exec For Windows Server
Published: 2008-12-10
Last modified: 2026-06-16

Description

Multiple unspecified vulnerabilities in the Backup Exec remote-agent logon process in Symantec Backup Exec for Windows Servers 11.0 (aka 11d) builds 6235 and 7170, 12.0 build 1364, and 12.5 build 2213 allow remote attackers to bypass authentication, and read or delete files, via unknown vectors.

Frequently asked questions

What is CVE-2008-5407?: Multiple unspecified vulnerabilities in the Backup Exec remote-agent logon process in Symantec Backup Exec for Windows Servers 11.0 (aka 11d) builds 6235 and 7170, 12.0 build 1364, and 12.5 build 2213 allow remote attackers to bypass authentication, and read or delete files, via unknown vectors.
How severe is CVE-2008-5407?: CVE-2008-5407 has a CVSS 2.0 base score of 9.4, rated critical severity.
Is CVE-2008-5407 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-5407?: CVE-2008-5407 primarily affects Symantec Backup Exec For Windows Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-5407?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2008-5407 published?: CVE-2008-5407 was published on 2008-12-10 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:symantec:backup_exec_for_windows_server:11d:11.0.6235:*:*:*:*:*:*
cpe:2.3:a:symantec:backup_exec_for_windows_server:11d:11.0.7170:*:*:*:*:*:*
cpe:2.3:a:symantec:backup_exec_for_windows_server:12.0:12.0.1364:*:*:*:*:*:*
cpe:2.3:a:symantec:backup_exec_for_windows_server:12.5:12.5.2213:*:*:*:*:*:*

More vulnerabilities in Symantec Backup Exec For Windows Server

CVE-2007-6016 — Critical (CVSS 9.3): Multiple stack-based buffer overflows in the PVATLCalendar.PVCalendar.1 ActiveX control in pvcalendar.ocx in the…
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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
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CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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