How severe is CVE-2015-4221?

CVE-2015-4221 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2015-4221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-4221?

CVE-2015-4221 affects Cisco Unified Communications Manager Im And Presence Service. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-4221?

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

When was CVE-2015-4221 published?

CVE-2015-4221 was published on 2015-06-26 and last updated on 2026-06-17.

CVE-2015-4221

CVE-2015-4221 is a medium-severity vulnerability in Cisco Unified Communications Manager Im And Presence Service with a CVSS 2.0 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Cisco Unified Communications Manager Im And Presence Service
Published: 2015-06-26
Last modified: 2026-06-17

Description

Cisco Unified Communications Manager IM and Presence Service 9.1(1) does not properly restrict access to encrypted passwords, which allows remote attackers to determine cleartext passwords, and consequently execute arbitrary commands, by visiting an unspecified web page and then conducting a decryption attack, aka Bug ID CSCuq46194.

Frequently asked questions

What is CVE-2015-4221?: Cisco Unified Communications Manager IM and Presence Service 9.1(1) does not properly restrict access to encrypted passwords, which allows remote attackers to determine cleartext passwords, and consequently execute arbitrary commands, by visiting an unspecified web page and then conducting a decryption attack, aka Bug ID CSCuq46194.
How severe is CVE-2015-4221?: CVE-2015-4221 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2015-4221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-4221?: CVE-2015-4221 affects Cisco Unified Communications Manager Im And Presence Service. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-4221?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-4221 published?: CVE-2015-4221 was published on 2015-06-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:9.1\(1\):*:*:*:*:*:*:*

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