How severe is CVE-2011-3477?

CVE-2011-3477 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2011-3477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3477?

CVE-2011-3477 primarily affects Symantec Backup Exec System Recovery. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3477?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-3477 published?

CVE-2011-3477 was published on 2018-02-19 and last updated on 2026-06-16.

CVE-2011-3477

CVE-2011-3477 is a medium-severity vulnerability in Symantec Backup Exec System Recovery with a CVSS 3.x base score of 5.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.9
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Symantec Backup Exec System Recovery
Published: 2018-02-19
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2011-3477?: CVE-2011-3477 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2011-3477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3477?: CVE-2011-3477 primarily affects Symantec Backup Exec System Recovery. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3477?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3477 published?: CVE-2011-3477 was published on 2018-02-19 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:symantec:backup_exec_system_recovery:8.5:*:*:*:*:*:*:*
cpe:2.3:a:symantec:backup_exec_system_recovery:9.0:*:*:*:*:*:*:*
cpe:2.3:a:symantec:backup_exec_system_recovery:2010:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_360:5.0:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_ghost:*:*:*:*:*:*:*:*
cpe:2.3:a:symantec:system_recovery_2011:10.0:*:*:*:*:*:*:*

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48056 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download video content. Versions prior to 2.5.0…
CVE-2026-33267 — Critical (CVSS 10.0): Improper Input Validation vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.2.0…
CVE-2026-47668 — Critical (CVSS 10.0): DbGate is cross-platform database manager. In versions 7.1.8 and prior, DbGate's JSON script runner (`POST…
CVE-2026-16117 — Critical (CVSS 10.0): Impact: @fastify/http-proxy versions up to and including 11.5.0 fail to rewrite the request prefix when the prefix…
CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →