How severe is CVE-2025-44823?

CVE-2025-44823 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-44823 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-44823?

CVE-2025-44823 primarily affects Nagios Log Server. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-44823?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-44823 have an EU (EUVD) identifier?

Yes. CVE-2025-44823 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31897.

When was CVE-2025-44823 published?

CVE-2025-44823 was published on 2025-10-07 and last updated on 2026-06-17.

CVE-2025-44823

CVE-2025-44823 is a critical-severity vulnerability in Nagios Log Server with a CVSS 3.x base score of 9.9. Its EPSS exploit-prediction score of 16% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-497.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 16% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31897
Weakness: CWE-497
Affected product: Nagios Log Server
Published: 2025-10-07
Last modified: 2026-06-17

Description

Nagios Log Server before 2024R1.3.2 allows authenticated users to retrieve cleartext administrative API keys via a /nagioslogserver/index.php/api/system/get_users call. This is GL:NLS#475.

Frequently asked questions

What is CVE-2025-44823?: Nagios Log Server before 2024R1.3.2 allows authenticated users to retrieve cleartext administrative API keys via a /nagioslogserver/index.php/api/system/get_users call. This is GL:NLS#475.
How severe is CVE-2025-44823?: CVE-2025-44823 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-44823 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-44823?: CVE-2025-44823 primarily affects Nagios Log Server. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-44823?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-44823 have an EU (EUVD) identifier?: Yes. CVE-2025-44823 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31897.
When was CVE-2025-44823 published?: CVE-2025-44823 was published on 2025-10-07 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:nagios:log_server:*:*:*:*:*:*:*:*
cpe:2.3:a:nagios:log_server:2024:r1:*:*:*:*:*:*
cpe:2.3:a:nagios:log_server:2024:r1.0.1:*:*:*:*:*:*
cpe:2.3:a:nagios:log_server:2024:r1.0.2:*:*:*:*:*:*
cpe:2.3:a:nagios:log_server:2024:r1.1:*:*:*:*:*:*
cpe:2.3:a:nagios:log_server:2024:r1.2:*:*:*:*:*:*
cpe:2.3:a:nagios:log_server:2024:r1.3:*:*:*:*:*:*
cpe:2.3:a:nagios:log_server:2024:r1.3.1:*:*:*:*:*:*

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