CVE-2023-2310Network attack vector

Service interruption via man-in-the-middle channel access

Published May 10, 2023 · Updated Jan 27, 2025

CWE-300 in SEL Real-Time Automation Controller firmware allows remote attackers to interrupt service through a man-in-the-middle attack. SEL has not disclosed which RTAC communication channel lacks endpoint verification or the exact message handling that triggers the interruption. Exploitation requires an on-path network position and user interaction; the published consequence is an unspecified denial-of-service condition.

CVSS severity6.8
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CWE-300 in SEL Real-Time Automation Controller firmware allows remote attackers to interrupt service through a man-in-the-middle attack. SEL has not disclosed which RTAC communication channel lacks endpoint verification or the exact message handling that triggers the interruption. Exploitation requires an on-path network position and user interaction; the published consequence is an unspecified denial-of-service condition.

The record

CVE
CVE-2023-2310
Published
May 10, 2023
Updated
Jan 27, 2025
Vendor
Schweitzer Engineering Laboratories
Product
SEL-3530 Real-Time Automation Controller (RTAC)
Classifications
CWE-300, CAPEC-469, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=R100-V0 <R147-V6
  2. Affected versionversion=R100-V0 <R148-V7
  3. Affected versionversion=R100-V0 <R149-V4
  4. Affected versionversion=R100-V0 <R150-V2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Schweitzer Engineering Laboratories · SEL-3530 Real-Time Automation Controller (RTAC)version=R100-V0 <R147-V6; version=R100-V0 <R148-V7; version=R100-V0 <R149-V4; version=R100-V0 <R150-V2
Schweitzer Engineering Laboratories · SEL-2241 RTAC Moduleversion=R113-V0 <R147-V6; version=R113-V0 <R148-V7; version=R113-V0 <R149-V4; version=R113-V0 <R150-V2
Schweitzer Engineering Laboratories · SEL-3555version=R134-V0 <R147-V6; version=R134-V0 <R148-V7; version=R134-V0 <R149-V4; version=R134-V0 <R150-V2
Schweitzer Engineering Laboratories · SEL-3505-3version=R132-V0 <R147-V6; version=R132-V0 <R148-V7; version=R132-V0 <R149-V4; version=R132-V0 <R150-V2
Schweitzer Engineering Laboratories · SEL-3532version=R132-V0 <R147-V6; version=R132-V0 <R148-V7; version=R132-V0 <R149-V4; version=R132-V0 <R150-V2
Schweitzer Engineering Laboratories · SEL-3350version=R148-V0 <R148-V7; version=R148-V0 <R149-V4; version=R148-V0 <R150-V2
Schweitzer Engineering Laboratories · SEL-3530-4version=R108-V0 <R147-V6; version=R108-V0 <R148-V7; version=R108-V0 <R149-V4; version=R108-V0 <R150-V2
Schweitzer Engineering Laboratories · SEL-3505 Real-Time Automation Controller (RTAC)version=R119-V0 <R147-V6; version=R119-V0 <R148-V7; version=R119-V0 <R149-V4; version=R119-V0 <R150-V2
Schweitzer Engineering Laboratories · SEL-3560Eversion=R144-V2 <R147-V6; version=R144-V2 <R148-V7; version=R144-V2 <R149-V4; version=R144-V2 <R150-V2
Schweitzer Engineering Laboratories · SEL-3560Sversion=R144-V2 <R147-V6; version=R144-V2 <R148-V7; version=R144-V2 <R149-V4; version=R144-V2 <R150-V2

Published CVSS scores

6.8Schweitzer Engineering LaboratoriesCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-300Channel Accessible by Non-Endpoint
CAPEC-469HTTP DoS
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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