What is CVE-2011-3477?

CVE-2011-3477 is a medium-severity vulnerability in Symantec Backup Exec System Recovery, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2018-02-19.

How severe is CVE-2011-3477?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Improper input validation in Symantec Backup Exec System Recovery

CVE-2011-3477

GEAR Software CD DVD Filter driver (aka GEARAspiWDM.sys), as used in Symantec Backup Exec System Recovery 8.5 and BESR 2010, Symantec System Recovery 2011, Norton 360, and Norton Ghost, allows local users to cause a denial of service (system crash) via unspecified vectors.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-02-19 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Symantec Backup Exec System Recovery — versions 8.5, 9.0, 2010
Symantec Norton 360 — versions 5.0
Symantec Norton Ghost
Symantec System Recovery 2011 — versions 10.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.securityfocus.com/bid/47822 (VDB Entry, Third Party Advisory, vdb-entry)
www.symantec.com/security_response/securityupdates/detail.jsp (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2011-3477?: CVE-2011-3477 is a medium-severity vulnerability in Symantec Backup Exec System Recovery, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2018-02-19.
How severe is CVE-2011-3477?: Medium severity. CVSS v3 base score is 5.5 out of 10.