How severe is CVE-2023-23903?

CVE-2023-23903 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-23903 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23903?

CVE-2023-23903 primarily affects Nozominetworks Cmc. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-23903?

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

When was CVE-2023-23903 published?

CVE-2023-23903 was published on 2023-08-09 and last updated on 2026-06-17.

CVE-2023-23903

CVE-2023-23903 is a medium-severity vulnerability in Nozominetworks Cmc with a CVSS 3.x base score of 4.9. 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-1286.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v4: 6.9
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1286
Affected product: Nozominetworks Cmc
Published: 2023-08-09
Last modified: 2026-06-17

Description

An authenticated administrator can upload a SAML configuration file with the wrong format, with the application not checking the correct file format. Every subsequent application request will return an error. The whole application in rendered unusable until a console intervention.

Frequently asked questions

What is CVE-2023-23903?: An authenticated administrator can upload a SAML configuration file with the wrong format, with the application not checking the correct file format. Every subsequent application request will return an error. The whole application in rendered unusable until a console intervention.
How severe is CVE-2023-23903?: CVE-2023-23903 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-23903 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23903?: CVE-2023-23903 primarily affects Nozominetworks Cmc. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-23903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-23903 published?: CVE-2023-23903 was published on 2023-08-09 and last updated on 2026-06-17.

References

https://security.nozominetworks.com/NN-2023:7-01

Affected products (2)

cpe:2.3:a:nozominetworks:cmc:*:*:*:*:*:*:*:*
cpe:2.3:a:nozominetworks:guardian:*:*:*:*:*:*:*:*

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