Norton Security (Windows client) prior to 22.16.3 and SEP SBE (Windows client) prior to Cloud Agent 3.00.31.2817, NIS-22.15.2.22 & SEP-12.1.
Norton Security (Windows client) prior to 22.16.3 and SEP SBE (Windows client) prior to Cloud Agent 3.00.31.2817, NIS-22.15.2.22 & SEP-12.1.7484.7002, may be susceptible to a DLL Preloading vulnerability, which is a type of issue that can occur when an application looks to call a DLL for execution and an attacker provides a malicious DLL to use instead.
- Published
- Apr 25, 2019
- Updated
- Jun 16, 2026
- EPSS
- 2.4% · 83th percentile
- CWE
- CWE-426
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Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.4%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| symantec | endpoint protection | cpe:2.3:a:symantec:endpoint_protection |
| symantec | endpoint protection cloud | cpe:2.3:a:symantec:endpoint_protection_cloud |
| symantec | endpoint protection cloud agent | cpe:2.3:a:symantec:endpoint_protection_cloud_agent |
| symantec | norton security | cpe:2.3:a:symantec:norton_security |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- symantec endpoint protectionnis-22.15.2.22
- symantec endpoint protectionsep-12.1.7484.7002
- symantec endpoint protection cloudbefore 22.16.3
- symantec endpoint protection cloud agentbefore 3.00.31.2817
- symantec norton securitybefore 22.16.3
Versions reported by the vendor
Affected version ranges reported by the assigning authority (symantec). Independent of NVD's CPE analysis and usually ahead of it.
Symantec Corporation Norton Security
- Prior to 22.16.3affected
Symantec Corporation Symantec Endpoint Protection Small Business Edition
- Prior to Cloud Agent 3.00.31.2817, NIS-22.15.2.22, SEP-12.1.7484.7002affected
Same product
symantec: all recordsOther highest-scoring records for the same primary product.
- CVE-2012-0295The Manager service in the management console in Symantec Endpoint Protection (SEP) 12.1 before 12.1 RU1-MP1 allows remote attackers to cond38Monitor
- CVE-2018-5237Symantec Endpoint Protection prior to 14 RU1 MP1 or 12.1 RU6 MP10 could be susceptible to a privilege escalation vulnerability, which is a t36Monitor
- CVE-2010-0114fw_charts.php in the reporting module in the Manager (aka SEPM) component in Symantec Endpoint Protection (SEP) 11.x before 11 RU6 MP2 allow32Monitor
- CVE-2020-5837Symantec Endpoint Protection, prior to 14.3, may not respect file permissions when writing to log files that are replaced by symbolic links,31Monitor
- CVE-2020-5836Symantec Endpoint Protection, prior to 14.3, can potentially reset the ACLs on a file as a limited user while Symantec Endpoint Protection's31Monitor
- CVE-2020-5823Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.31Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-426 · Untrusted Search PathCVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.