How severe is CVE-2021-37441?

CVE-2021-37441 has a CVSS 3.x base score of 8.8, rated high 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-2021-37441 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37441?

CVE-2021-37441 affects Nch Axon Pbx. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-37441?

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

When was CVE-2021-37441 published?

CVE-2021-37441 was published on 2021-07-25 and last updated on 2026-06-17.

CVE-2021-37441

CVE-2021-37441 is a high-severity vulnerability in Nch Axon Pbx with a CVSS 3.x base score of 8.8. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Nch Axon Pbx
Published: 2021-07-25
Last modified: 2026-06-17

Description

NCH Axon PBX v2.22 and earlier allows path traversal for file deletion via the logdelete?file=/.. substring.

Frequently asked questions

What is CVE-2021-37441?: NCH Axon PBX v2.22 and earlier allows path traversal for file deletion via the logdelete?file=/.. substring.
How severe is CVE-2021-37441?: CVE-2021-37441 has a CVSS 3.x base score of 8.8, rated high 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-2021-37441 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37441?: CVE-2021-37441 affects Nch Axon Pbx. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-37441?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-37441 published?: CVE-2021-37441 was published on 2021-07-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nch:axon_pbx:*:*:*:*:*:*:*:*

More vulnerabilities in Nch Axon Pbx

CVE-2018-11551 — High (CVSS 7.8): AXON PBX 2.02 contains a DLL hijacking vulnerability that could allow an unauthenticated, remote attacker to execute…
CVE-2021-37440 — Medium (CVSS 6.5): NCH Axon PBX v2.22 and earlier allows path traversal for file disclosure via the logprop?file=/.. substring.
CVE-2018-11552 — Medium (CVSS 6.1): There is a reflected XSS vulnerability in AXON PBX 2.02 via the "AXON->Auto-Dialer->Agents->Name" field. The…

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