HOMEVULNERABILITIESCVE-2023-34391
MEDIUM

CVE-2023-34391

CWE-277Published: August 31, 2023· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

Insecure Inherited Permissions vulnerability in Schweitzer Engineering Laboratories SEL-5033 AcSELerator RTAC Software on Windows allows Leveraging/Manipulating Configuration File Search Paths.

See Instruction Manual Appendix A [Cybersecurity] tag dated 20230522 for more details.

This issue affects SEL-5033 AcSELerator RTAC Software: before 1.35.151.21000.

NVD Source

Technical Analysis

CVE-2023-34391 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

Microsoft1 product(s)
windows
selinc1 product(s)
sel-5033 acselerator real-time automation controller
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://selinc.com/support/security-notifications/external-reports/
ADVISORYhttps://selinc.com/support/security-notifications/external-reports/

All References (4)

→
https://dragos.comNot Applicable
→
https://selinc.com/support/security-notifications/external-reports/Vendor Advisory
→
https://dragos.comNot Applicable
→
https://selinc.com/support/security-notifications/external-reports/Vendor Advisory

Quick Facts

CVE IDCVE-2023-34391
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-277
CISA KEVNo
Affected2 vendor(s)
PublishedAug 31, 2023

Related CVEs (CWE-277)

CVE-2024-36539
9.8
CVE-2024-36540
9.8
CVE-2026-7891
9.3
CVE-2024-36542
8.8
CVE-2024-6605
8.8
CVE-2024-29417
8.4

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-34391 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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