Read the docs
TI-2018-03800 Aliases CVE-2018-5243GHSA-w8qw-x88f-f35r

Uncontrolled resource consumption in Symantec Encryption Management Server

Priority LOW 36CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be susceptible to a denial of service (DoS) exploit. A DoS attack is a type of attack whereby the perpetrator attempts to make a particular machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a specific host within a network.

Why it matters now

EPSS 0.01768 78th 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
SymantecSymantec Encryption Management Server (SEMS)Prior to 3.4.2 MP1—No fix listedCNA
  • Symantec Encryption Management Server (SEMS) VendorSymantec Affected Prior to 3.4.2 MP1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:symantec:encryption_management_server:*:*:*:*:*:*:*:*up to 3.4.2VulnerableSymantec
  • cpe:2.3:a:symantec:encryption_management_server:*:*:*:*:*:*:*:* Versions up to 3.4.2 Vulnerable ·Symantec

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-5243
  2. 2026-10-03 Alias added: GHSA-w8qw-x88f-f35r

References

Advisory 1

  • TI-2014-06071 Symantec PGP Universal Server and Encryption Management Server before 3.3.2 MP7 allow… CVSS 2.0HIGH 9.0
  • TI-2015-06759 Symantec Encryption Management Server (SEMS) 3.3.2 before MP12 allows remote… CVSS 3.0CRITICAL 9.1
  • TI-2015-06757 The LDAP service in Symantec Encryption Management Server (SEMS) 3.3.2 before MP12 allows… CVSS 3.0HIGH 7.5
  • TI-2015-06756 The LDAP service in Symantec Encryption Management Server (SEMS) 3.3.2 before MP12 allows… CVSS 3.0HIGH 7.5
  • TI-2015-06758 Symantec Encryption Management Server (SEMS) 3.3.2 before MP12 allows local users to… CVSS 3.0HIGH 7.8
  • TI-2014-06070 The key-management component in Symantec PGP Universal Server and Encryption Management… CVSS 2.0MEDIUM 5.0
See all 8 →

Sources

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