How severe is CVE-2017-11191?

CVE-2017-11191 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-2017-11191 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11191?

CVE-2017-11191 primarily affects Freeipa. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-11191?

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-2017-11191 published?

CVE-2017-11191 was published on 2017-09-28 and last updated on 2026-06-17.

CVE-2017-11191

CVE-2017-11191 is a high-severity vulnerability in Freeipa 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-384.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-384
Affected product: Freeipa
Published: 2017-09-28
Last modified: 2026-06-17

Description

FreeIPA 4.x with API version 2.213 allows a remote authenticated users to bypass intended account-locking restrictions via an unlock action with an old session ID (for the same user account) that had been created for an earlier session. NOTE: Vendor states that issue does not exist in product and does not recognize this report as a valid security concern

Frequently asked questions

What is CVE-2017-11191?: FreeIPA 4.x with API version 2.213 allows a remote authenticated users to bypass intended account-locking restrictions via an unlock action with an old session ID (for the same user account) that had been created for an earlier session. NOTE: Vendor states that issue does not exist in product and does not recognize this report as a valid security concern
How severe is CVE-2017-11191?: CVE-2017-11191 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-2017-11191 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11191?: CVE-2017-11191 primarily affects Freeipa. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-11191?: 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-2017-11191 published?: CVE-2017-11191 was published on 2017-09-28 and last updated on 2026-06-17.

References

http://packetstormsecurity.com/files/143532/FreeIPA-2.213-Session-Hijacking.html

Affected products (31)

cpe:2.3:a:freeipa:freeipa:4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.1.3:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.1.4:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.2.1:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.2.2:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.2.3:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.2.4:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.3.0:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.3.1:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.3.2:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.3.3:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.4.0:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.4.1:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.4.2:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.4.3:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.4.4:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.5.0:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.5.1:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.5.2:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.5.3:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.6.0:*:*:*:*:*:*:*
cpe:2.3:a:freeipa:freeipa:4.6.1:*:*:*:*:*:*:*

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