How severe is CVE-2023-34389?

CVE-2023-34389 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-34389 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34389?

CVE-2023-34389 primarily affects Selinc Sel-451 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-34389?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-34389 published?

CVE-2023-34389 was published on 2023-11-30 and last updated on 2026-06-17.

CVE-2023-34389

CVE-2023-34389 is a medium-severity vulnerability in Selinc Sel-451 Firmware with a CVSS 3.x base score of 4.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

Severity: Medium (CVSS 3.x base score 4.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Selinc Sel-451 Firmware
Published: 2023-11-30
Last modified: 2026-06-17

Description

An allocation of resources without limits or throttling vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated attacker to make the system unavailable for an indefinite amount of time. See product Instruction Manual Appendix A dated 20230830 for more details.

Frequently asked questions

What is CVE-2023-34389?: An allocation of resources without limits or throttling vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated attacker to make the system unavailable for an indefinite amount of time. See product Instruction Manual Appendix A dated 20230830 for more details.
How severe is CVE-2023-34389?: CVE-2023-34389 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-34389 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34389?: CVE-2023-34389 primarily affects Selinc Sel-451 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-34389?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-34389 published?: CVE-2023-34389 was published on 2023-11-30 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-451_firmware:r326-v0:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-451_firmware:r327-v0:*:*:*:*:*:*:*

More vulnerabilities in Selinc Sel-451 Firmware

CVE-2023-31176 — High (CVSS 7.5): An Insufficient Entropy vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow an unauthenticated…
CVE-2023-34388 — Medium (CVSS 6.5): An Improper Authentication vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote…
CVE-2023-34390 — Medium (CVSS 4.5): An input validation vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated…
CVE-2023-31177 — Medium (CVSS 4.3): An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in the Schweitzer Engineering…

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