VulnerabilityModified

CVE-2018-12239

MEDIUM 6.8EPSS 0.52%

Does this matter?

Lower severity and a low EPSS score (0.52%). Track it; it rarely justifies an emergency change on its own.

Description

Norton prior to 22.15; Symantec Endpoint Protection (SEP) prior to 12.1.7454.7000 & 14.2; Symantec Endpoint Protection Small Business Edition (SEP SBE) prior to NIS-22.15.1.8 & SEP-12.1.7454.7000; and Symantec Endpoint Protection Cloud (SEP Cloud) prior to 22.15.1 may be susceptible to an AV bypass issue, which is a type of exploit that works to circumvent one of the virus detection engines to avoid a specific type of virus protection. One of the antivirus engines depends on a signature pattern from a database to identify malicious files and viruses; the antivirus bypass exploit looks to alter the file being scanned so it is not detected.

CVSS 3.0: 6.8 MEDIUMCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.52% probability · 44th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Affected: symantec/endpoint protection · symantec/endpoint protection cloud · symantec/norton antivirus
Source: secure@symantec.com

EPSS trend

EPSS 0.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

http://www.securityfocus.com/bid/105918Third Party Advisory, VDB Entry
https://support.symantec.com/content/unifiedweb/en_US/article.SYMSA1468.htmlVendor Advisory
http://www.securityfocus.com/bid/105918Third Party Advisory, VDB Entry
https://support.symantec.com/content/unifiedweb/en_US/article.SYMSA1468.htmlVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.