Read the docs
TI-2000-00478 Aliases CVE-2000-0478GHSA-p6q8-hh72-gjjx

In some cases, Norton Antivirus for Exchange (NavExchange) enters a "fail-open" state…

Priority LOW 27Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Partial · None
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

In some cases, Norton Antivirus for Exchange (NavExchange) enters a "fail-open" state which allows viruses to pass through the server.

Why it matters now

EPSS 0.02005 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:symantec:norton_antivirus:1.5:*:ms_exchange:*:*:*:*:*1.5VulnerableSymantec
cpe:2.3:a:symantec:norton_antivirus:2.0:*:ms_exchange:*:*:*:*:*2.0VulnerableSymantec
  • cpe:2.3:a:symantec:norton_antivirus:1.5:*:ms_exchange:*:*:*:*:* Versions 1.5 Vulnerable ·Symantec
  • cpe:2.3:a:symantec:norton_antivirus:2.0:*:ms_exchange:*:*:*:*:* Versions 2.0 Vulnerable ·Symantec

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2000-0478
  2. 2026-10-03 Alias added: GHSA-p6q8-hh72-gjjx

References

Other 2

  • TI-2006-02539 Stack-based buffer overflow in Symantec Antivirus 10.1 and Client Security 3.1 allows… CVSS 2.0HIGH 10.0
  • TI-2016-02020 The AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP); Symantec… CVSS 3.0HIGH 7.8
  • TI-2016-03091 Integer overflow in the TNEF unpacker in the AntiVirus Decomposer engine in Symantec… CVSS 3.0CRITICAL 9.8
  • TI-2006-06237 Multiple buffer overflows in the SupportSoft (1) SmartIssue (tgctlsi.dll) and (2)… CVSS 2.0HIGH 10.0
  • TI-2016-03092 The AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP); Symantec… CVSS 3.0HIGH 8.4
  • TI-2016-03090 The AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP); Symantec… CVSS 3.0HIGH 8.4
See all 66 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences