How severe is CVE-2020-4253?

CVE-2020-4253 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-2020-4253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4253?

CVE-2020-4253 affects Ibm Content Navigator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4253?

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-2020-4253 published?

CVE-2020-4253 was published on 2020-03-24 and last updated on 2026-06-17.

CVE-2020-4253

CVE-2020-4253 is a high-severity vulnerability in Ibm Content Navigator 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-613.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Ibm Content Navigator
Published: 2020-03-24
Last modified: 2026-06-17

Description

IBM Content Navigator 3.0CD does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 175559.

Frequently asked questions

What is CVE-2020-4253?: IBM Content Navigator 3.0CD does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 175559.
How severe is CVE-2020-4253?: CVE-2020-4253 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-2020-4253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4253?: CVE-2020-4253 affects Ibm Content Navigator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4253?: 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-2020-4253 published?: CVE-2020-4253 was published on 2020-03-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:content_navigator:3.0.0:*:*:*:continuous_delivery:*:*:*

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