How severe is CVE-2013-4477?

CVE-2013-4477 has a CVSS 2.0 base score of 3.3, rated low severity.

Is CVE-2013-4477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4477?

CVE-2013-4477 primarily affects Openstack Grizzly. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4477?

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

When was CVE-2013-4477 published?

CVE-2013-4477 was published on 2013-11-02 and last updated on 2026-06-16.

CVE-2013-4477

CVE-2013-4477 is a low-severity vulnerability in Openstack Grizzly with a CVSS 2.0 base score of 3.3. 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-264.

Key facts

Severity: Low (CVSS 2.0 base score 3.3)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Openstack Grizzly
Published: 2013-11-02
Last modified: 2026-06-16

Description

The LDAP backend in OpenStack Identity (Keystone) Grizzly and Havana, when removing a role on a tenant for a user who does not have that role, adds the role to the user, which allows local users to gain privileges.

Frequently asked questions

What is CVE-2013-4477?: The LDAP backend in OpenStack Identity (Keystone) Grizzly and Havana, when removing a role on a tenant for a user who does not have that role, adds the role to the user, which allows local users to gain privileges.
How severe is CVE-2013-4477?: CVE-2013-4477 has a CVSS 2.0 base score of 3.3, rated low severity.
Is CVE-2013-4477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4477?: CVE-2013-4477 primarily affects Openstack Grizzly. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4477?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4477 published?: CVE-2013-4477 was published on 2013-11-02 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:openstack:grizzly:-:*:*:*:*:*:*:*
cpe:2.3:a:openstack:havana:-:*:*:*:*:*:*:*

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