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CVE-2016-5308

16
FAUCET Score

CVE-2016-5308 describes a denial-of-service vulnerability in the Client Intrusion Detection System (CIDS) driver within Symantec Endpoint Protection (SEP) and Norton Security. A remote attacker can trigger memory corruption and a system crash by presenting a malformed Portable Executable (PE) file to the affected systems. This vulnerability has a medium severity CVSS score of 5.5, indicating a local attack vector with low complexity, requiring user interaction, and leading to high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 15.1.2CPE matchmatch criteria
cpe:2.3:a:symantec:client_intrusion_detection_system:*:*:*:*:*:*:*:*
< 15.0.6CPE matchmatch criteria
cpe:2.3:a:symantec:client_intrusion_detection_system:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.42%
Probability of exploitation in next 30 days
EPSS Percentile
82.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0242 is in the 92nd percentile among its peer group of 5,758 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

securityfocus.com / bid/91608
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036264
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036265
Third Party AdvisoryVDB Entry
symantec.com / security_response/securityupdates/detail.jsp
Vendor Advisory