What is CVE-2023-26058?

CVE-2023-26058 is a medium-severity vulnerability in Nokia Netact, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2023-04-25.

How severe is CVE-2023-26058?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XXE in Nokia Netact

CVE-2023-26058

An XXE issue was discovered in Nokia NetAct before 22 FP2211 via an XML document to a Performance Manager page. Input validation and a proper XML parser configuration are missing. For an external attacker, it is very difficult to exploit this, because a few dynamically created parameters such as Jsession-id, a CSRF token, and an Nxsrf token would be needed. The attack can realistically only be performed by an internal user.

Vulnerability class: XXE (XML External Entity)

Published 2023-04-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Nokia Netact — versions 20.1

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

nokia.com (Product)
www.ptsecurity.com/ww-en/analytics/threatscape/pt-2022-02/ (Third Party Advisory)

Frequently asked questions

What is CVE-2023-26058?: CVE-2023-26058 is a medium-severity vulnerability in Nokia Netact, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2023-04-25.
How severe is CVE-2023-26058?: Medium severity. CVSS v3 base score is 6.5 out of 10.