How severe is CVE-2007-4347?

CVE-2007-4347 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2007-4347 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4347?

CVE-2007-4347 primarily affects Symantec Backupexec System Recovery. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4347?

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

When was CVE-2007-4347 published?

CVE-2007-4347 was published on 2007-11-29 and last updated on 2026-06-16.

CVE-2007-4347

CVE-2007-4347 is a high-severity vulnerability in Symantec Backupexec System Recovery with a CVSS 2.0 base score of 7.8. 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-189.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Symantec Backupexec System Recovery
Published: 2007-11-29
Last modified: 2026-06-16

Description

Multiple integer overflows in the Job Engine (bengine.exe) service in Symantec Backup Exec for Windows Servers (BEWS) 11d build 11.0.7170 and 11.0.6.6235 allow remote attackers to cause a denial of service (CPU and memory consumption) via a crafted packet to port 5633/tcp, which triggers an infinite loop.

Frequently asked questions

What is CVE-2007-4347?: Multiple integer overflows in the Job Engine (bengine.exe) service in Symantec Backup Exec for Windows Servers (BEWS) 11d build 11.0.7170 and 11.0.6.6235 allow remote attackers to cause a denial of service (CPU and memory consumption) via a crafted packet to port 5633/tcp, which triggers an infinite loop.
How severe is CVE-2007-4347?: CVE-2007-4347 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2007-4347 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4347?: CVE-2007-4347 primarily affects Symantec Backupexec System Recovery. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4347?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2007-4347 published?: CVE-2007-4347 was published on 2007-11-29 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:symantec:backupexec_system_recovery:11.0.6235:*:windows:*:*:*:*:*
cpe:2.3:a:symantec:backupexec_system_recovery:11.0.7170:*:windows:*:*:*:*:*

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