How severe is CVE-2021-26597?

CVE-2021-26597 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-26597 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26597?

CVE-2021-26597 affects Nokia Netact. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26597?

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

When was CVE-2021-26597 published?

CVE-2021-26597 was published on 2021-03-25 and last updated on 2026-06-17.

CVE-2021-26597

CVE-2021-26597 is a medium-severity vulnerability in Nokia Netact with a CVSS 3.x base score of 6.5. 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-434.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Nokia Netact
Published: 2021-03-25
Last modified: 2026-06-17

Description

An issue was discovered in Nokia NetAct 18A. A remote user, authenticated to the NOKIA NetAct Web Page, can visit the Site Configuration Tool web site section and arbitrarily upload potentially dangerous files without restrictions via the /netact/sct dir parameter in conjunction with the operation=upload value.

Frequently asked questions

What is CVE-2021-26597?: An issue was discovered in Nokia NetAct 18A. A remote user, authenticated to the NOKIA NetAct Web Page, can visit the Site Configuration Tool web site section and arbitrarily upload potentially dangerous files without restrictions via the /netact/sct dir parameter in conjunction with the operation=upload value.
How severe is CVE-2021-26597?: CVE-2021-26597 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-26597 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26597?: CVE-2021-26597 affects Nokia Netact. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26597?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26597 published?: CVE-2021-26597 was published on 2021-03-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nokia:netact:18a:*:*:*:*:*:*:*

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