How severe is CVE-2016-6023?

CVE-2016-6023 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-6023 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6023?

CVE-2016-6023 primarily affects Ibm Sterling Secure Proxy. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-6023?

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-2016-6023 published?

CVE-2016-6023 was published on 2016-10-06 and last updated on 2026-06-17.

CVE-2016-6023

CVE-2016-6023 is a high-severity vulnerability in Ibm Sterling Secure Proxy with a CVSS 3.x base score of 7.5. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Ibm Sterling Secure Proxy
Published: 2016-10-06
Last modified: 2026-06-17

Description

Directory traversal vulnerability in the Configuration Manager in IBM Sterling Secure Proxy (SSP) 3.4.2 before 3.4.2.0 iFix 8 and 3.4.3 before 3.4.3.0 iFix 1 allows remote attackers to read arbitrary files via a crafted URL.

Frequently asked questions

What is CVE-2016-6023?: Directory traversal vulnerability in the Configuration Manager in IBM Sterling Secure Proxy (SSP) 3.4.2 before 3.4.2.0 iFix 8 and 3.4.3 before 3.4.3.0 iFix 1 allows remote attackers to read arbitrary files via a crafted URL.
How severe is CVE-2016-6023?: CVE-2016-6023 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-6023 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6023?: CVE-2016-6023 primarily affects Ibm Sterling Secure Proxy. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6023?: 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-2016-6023 published?: CVE-2016-6023 was published on 2016-10-06 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:ibm:sterling_secure_proxy:3.4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_secure_proxy:3.4.2.0:ifix1:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_secure_proxy:3.4.2.0:ifix2:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_secure_proxy:3.4.2.0:ifix3:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_secure_proxy:3.4.2.0:ifix4:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_secure_proxy:3.4.2.0:ifix5:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_secure_proxy:3.4.2.0:ifix6:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_secure_proxy:3.4.2.0:ifix7:*:*:*:*:*:*
cpe:2.3:a:ibm:sterling_secure_proxy:3.4.3.0:*:*:*:*:*:*:*

More vulnerabilities in Ibm Sterling Secure Proxy

CVE-2024-41783 — Critical (CVSS 9.1): IBM Sterling Secure Proxy 6.0.0.0, 6.0.0.1, 6.0.0.2, 6.0.0.3, 6.1.0.0, and 6.2.0.0 could allow a privileged user to…
CVE-2024-38337 — Critical (CVSS 9.1): IBM Sterling Secure Proxy 6.0.0.0, 6.0.0.1, 6.0.0.2, 6.0.0.3, 6.1.0.0, and 6.2.0.0 could allow an unauthorized attacker…
CVE-2020-4462 — High (CVSS 8.2): IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling Secure Proxy 6.0.1,…
CVE-2024-41784 — High (CVSS 7.5): IBM Sterling Secure Proxy 6.0.0.0, 6.0.0.1, 6.0.0.2, 6.0.0.3, and 6.1.0.0 could allow a remote attacker to traverse…
CVE-2022-22336 — High (CVSS 7.5): IBM Sterling External Authentication Server and IBM Sterling Secure Proxy 6.0.3.0, 6.0.2.0, and 3.4.3.2 could allow a…
CVE-2021-29723 — High (CVSS 7.5): IBM Sterling Secure Proxy 6.0.1, 6.0.2, 2.4.3.2, and 3.4.3.2 uses weaker than expected cryptographic algorithms that…

All CVEs affecting Ibm Sterling Secure Proxy →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →