How severe is CVE-2023-50306?

CVE-2023-50306 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-50306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-50306?

CVE-2023-50306 affects Ibm Common Licensing. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-50306?

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

Does CVE-2023-50306 have an EU (EUVD) identifier?

Yes. CVE-2023-50306 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55111.

When was CVE-2023-50306 published?

CVE-2023-50306 was published on 2024-02-20 and last updated on 2026-06-17.

CVE-2023-50306

CVE-2023-50306 is a medium-severity vulnerability in Ibm Common Licensing with a CVSS 3.x base score of 4.0. 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-203.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55111
Weakness: CWE-203
Affected product: Ibm Common Licensing
Published: 2024-02-20
Last modified: 2026-06-17

Description

IBM Common Licensing 9.0 could allow a local user to enumerate usernames due to an observable response discrepancy. IBM X-Force ID: 273337.

Frequently asked questions

What is CVE-2023-50306?: IBM Common Licensing 9.0 could allow a local user to enumerate usernames due to an observable response discrepancy. IBM X-Force ID: 273337.
How severe is CVE-2023-50306?: CVE-2023-50306 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-50306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-50306?: CVE-2023-50306 affects Ibm Common Licensing. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-50306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-50306 have an EU (EUVD) identifier?: Yes. CVE-2023-50306 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55111.
When was CVE-2023-50306 published?: CVE-2023-50306 was published on 2024-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:common_licensing:9.0:*:*:*:*:*:*:*

More vulnerabilities in Ibm Common Licensing

CVE-2024-40697 — High (CVSS 7.5): IBM Common Licensing 9.0 does not require that users should have strong passwords by default, which makes it easier for…
CVE-2023-50946 — Medium (CVSS 6.5): IBM Common Licensing 9.0 could allow an authenticated user to modify a configuration file that they should not have…
CVE-2023-50945 — Medium (CVSS 6.2): IBM Common Licensing 9.0 stores user credentials in plain clear text which can be read by a local user.
CVE-2024-41774 — Medium (CVSS 4.8): IBM Common Licensing 9.0 is vulnerable to stored cross-site scripting. This vulnerability allows a privileged user to…

All CVEs affecting Ibm Common Licensing →

Other CWE-203 (Observable Discrepancy) vulnerabilities

CVE-2019-25337 — Critical (CVSS 9.8): OwnCloud 8.1.8 contains a username enumeration vulnerability that allows remote attackers to discover user accounts by…
CVE-2026-23519 — Critical (CVSS 9.8): RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major platforms to execute in…
CVE-2025-27667 — Critical (CVSS 9.8): Vasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.843 Application 20.0.1923 allows Administrative…
CVE-2024-25714 — Critical (CVSS 9.8): In Rhonabwy through 1.1.13, HMAC signature verification uses a strcmp function that is vulnerable to side-channel…
CVE-2024-25191 — Critical (CVSS 9.8): php-jwt 1.0.0 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass…
CVE-2024-25190 — Critical (CVSS 9.8): l8w8jwt 2.2.1 uses memcmp (which is not constant time) to verify authentication, which makes it easier to bypass…

Browse all CWE-203 (Observable Discrepancy) vulnerabilities →