How severe is CVE-2019-4423?

CVE-2019-4423 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-4423 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-4423?

CVE-2019-4423 affects Ibm Sterling File Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-4423?

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

When was CVE-2019-4423 published?

CVE-2019-4423 was published on 2019-09-30 and last updated on 2026-06-17.

CVE-2019-4423

CVE-2019-4423 is a medium-severity vulnerability in Ibm Sterling File Gateway with a CVSS 3.x base score of 5.3. 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: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Ibm Sterling File Gateway
Published: 2019-09-30
Last modified: 2026-06-17

Description

IBM Sterling File Gateway 2.2.0.0 through 6.0.1.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 162769.

Frequently asked questions

What is CVE-2019-4423?: IBM Sterling File Gateway 2.2.0.0 through 6.0.1.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 162769.
How severe is CVE-2019-4423?: CVE-2019-4423 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-4423 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-4423?: CVE-2019-4423 affects Ibm Sterling File Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-4423?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-4423 published?: CVE-2019-4423 was published on 2019-09-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:sterling_file_gateway:*:*:*:*:*:*:*:*

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