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NVD / CVE Program· CNA SEL

CVE-2023-2310: Channel Accessible by Non-Endpoint

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.50% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. Special conditions such as timing or configuration are required.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A Channel Accessible by Non-Endpoint vulnerability in the Schweitzer Engineering Laboratories SEL Real-Time Automation Controller (RTAC) could allow a remote attacker to perform a man-in-the-middle (MiTM) that could result in denial of service. See the ACSELERATOR RTAC SEL-5033 Software instruction manual date code 20210915 for more details.

MediumCVSS 5.3 · v3.1—No exploit No fix recorded
Published
May 10, 2023
Updated
Jun 17, 2026
EPSS
0.5% · 42th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.3
CNA · SEL
6.8
1.5 point gap

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-2310

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
selincsel-2241 rtac module firmware
selincsel-2241 rtac module
selincsel-3350 firmware
selincsel-3350
selincsel-3505 firmware
selincsel-3505
selincsel-3505-3 firmware
selincsel-3505-3
selincsel-3530 firmware
selincsel-3530
selincsel-3530-4 firmware
selincsel-3530-4

and 8 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • selinc sel-2241 rtac module firmwarer113-v0 and later · before r150-v2
  • selinc sel-3350 firmwarer148-v0 and later · before r150-v2
  • selinc sel-3505 firmwarer119-v0 and later · before r150-v2
  • selinc sel-3505-3 firmwarer132-v0 and later · before r150-v2
  • selinc sel-3530 firmwarer100-v0 and later · before r150-v2
  • selinc sel-3530-4 firmwarer108-v0 and later · before r150-v2
  • selinc sel-3532 firmwarer132-v0 and later · before r150-v2
  • selinc sel-3555 firmwarer134-v0 and later · before r150-v2
  • selinc sel-3560e firmwarer144-v2 and later · before r150-v2
  • selinc sel-3560s firmwarer144-v2 and later · before r150-v2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (SEL). Independent of NVD's CPE analysis and usually ahead of it.

  • Schweitzer Engineering Laboratories SEL-3505

    • R119-V0 and later · before R150-V2affected
    • R119-V0 and later · before R149-V4affected
    • R119-V0 and later · before R148-V7affected
    • R119-V0 and later · before R147-V6affected
  • Schweitzer Engineering Laboratories SEL-3530

    • R100-V0 and later · before R150-V2affected
    • R100-V0 and later · before R149-V4affected
    • R100-V0 and later · before R148-V7affected
    • R100-V0 and later · before R147-V6affected
  • Schweitzer Engineering Laboratories, Inc. SEL-2241 RTAC module

    • R113-V0 and later · before R150-V2affected
    • R113-V0 and later · before R149-V4affected
    • R113-V0 and later · before R148-V7affected
    • R113-V0 and later · before R147-V6affected
  • Schweitzer Engineering Laboratories, Inc. SEL-3350

    • R148-V0 and later · before R150-V2affected
    • R148-V0 and later · before R149-V4affected
    • R148-V0 and later · before R148-V7affected
  • Schweitzer Engineering Laboratories, Inc. SEL-3505-3

    • R132-V0 and later · before R150-V2affected
    • R132-V0 and later · before R149-V4affected
    • R132-V0 and later · before R148-V7affected
    • R132-V0 and later · before R147-V6affected
  • Schweitzer Engineering Laboratories, Inc. SEL-3530-4

    • R108-V0 and later · before R150-V2affected
    • R108-V0 and later · before R149-V4affected
    • R108-V0 and later · before R148-V7affected
    • R108-V0 and later · before R147-V6affected
  • Schweitzer Engineering Laboratories, Inc. SEL-3532

    • R132-V0 and later · before R150-V2affected
    • R132-V0 and later · before R149-V4affected
    • R132-V0 and later · before R148-V7affected
    • R132-V0 and later · before R147-V6affected
  • Schweitzer Engineering Laboratories, Inc. SEL-3555

    • R134-V0 and later · before R150-V2affected
    • R134-V0 and later · before R149-V4affected
    • R134-V0 and later · before R148-V7affected
    • R134-V0 and later · before R147-V6affected
  • Schweitzer Engineering Laboratories, Inc. SEL-3560E

    • R144-V2 and later · before R150-V2affected
    • R144-V2 and later · before R149-V4affected
    • R144-V2 and later · before R148-V7affected
    • R144-V2 and later · before R147-V6affected
  • Schweitzer Engineering Laboratories, Inc. SEL-3560S

    • R144-V2 and later · before R150-V2affected
    • R144-V2 and later · before R149-V4affected
    • R144-V2 and later · before R148-V7affected
    • R144-V2 and later · before R147-V6affected

Other highest-scoring records for the same primary product.

Published before and after this one in the same product

  • Later →CVE-2023-31150May 10, 2023 · Storing Passwords in a Recoverable Format
    26Monitor
  • Later →CVE-2023-31151May 10, 2023 · Improper Certificate Validation
    16Monitor
  • Later →CVE-2023-31153May 10, 2023 · Improper Neutralization of Input During Web Page Generation
    21Monitor

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.

No history yet (it accumulates with the daily EPSS job).

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.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

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

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

nvd-primary

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.

All records