Symantec vendor intelligence
Symantec Known Exploited Vulnerabilities
Track evidence-backed exploitation affecting Symantec products, including the gap beyond CISA KEV, confidence assessments, sensor observations, and practical response context.
- Total KEVs
- 3
- Known exploited vulnerabilities affecting Symantec products
- In CISA KEV
- 1
- Records also listed in the official catalog
- Beyond CISA KEV
- 2
- Additional exploited CVEs absent from CISA KEV
- Sensor Observed
- 1
- Symantec KEV with sensor-observed exploitation activity
The catalog gap matters for Symantec exposure
Two of the three exploited Symantec CVEs tracked here are not in CISA KEV. Teams relying on the official catalog alone would miss two-thirds of this vendor portfolio.
- 33%
- Covered by CISA
- 67%
- Beyond CISA
- 2
- Product families
Attested Symantec CVEs
Search the exploited-vulnerability portfolio, then narrow it to official CISA coverage or the additional records KEV Intelligence tracks beyond the catalog.
How exploitation is verified| CVE / description | Product | Confidence | CISA KEV | Added |
|---|---|---|---|---|
|
CVE-2016-5312
Directory traversal vulnerability in the charting component in Symantec Messaging Gateway before 10.6.2 allows remote authenticated users to read... |
Messaging Gateway | Confirmed | Beyond CISA | 16 Aug 2026 |
|
CVE-2017-6327
The Symantec Messaging Gateway before 10.6.3-267 can encounter an issue of remote code execution, which describes a situation whereby an individual... |
Messaging Gateway | Confirmed | In CISA | 03 Nov 2021 |
|
CVE-2012-0297
The management GUI in Symantec Web Gateway 5.0.x before 5.0.3 does not properly restrict access to application scripts, which allows remote... |
Web Gateway | High | Beyond CISA | 21 May 2012 |
No Symantec CVEs match this search or filter.
Showing 3 of 3 Symantec known exploited vulnerabilities.
Recurring weakness patterns
Limitation, permissions, privileges, and access controls, and neutralization account for three mapped occurrences across this Symantec KEV portfolio.
Early warning alerts
Get alerts on high-impact exploitation
Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.