How severe is CVE-2015-0621?

CVE-2015-0621 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2015-0621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0621?

CVE-2015-0621 affects Cisco Telepresence Mcu 4500 Series Software. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-0621?

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-2015-0621 published?

CVE-2015-0621 was published on 2015-02-18 and last updated on 2026-06-17.

CVE-2015-0621

CVE-2015-0621 is a high-severity vulnerability in Cisco Telepresence Mcu 4500 Series Software with a CVSS 2.0 base score of 7.8. 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-19.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-19
Affected product: Cisco Telepresence Mcu 4500 Series Software
Published: 2015-02-18
Last modified: 2026-06-17

Description

Cisco TelePresence MCU devices with software 4.5(1.45) allow remote attackers to cause a denial of service (device reload) via an unspecified series of TCP packets, aka Bug ID CSCur50347.

Frequently asked questions

What is CVE-2015-0621?: Cisco TelePresence MCU devices with software 4.5(1.45) allow remote attackers to cause a denial of service (device reload) via an unspecified series of TCP packets, aka Bug ID CSCur50347.
How severe is CVE-2015-0621?: CVE-2015-0621 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2015-0621 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0621?: CVE-2015-0621 affects Cisco Telepresence Mcu 4500 Series Software. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-0621?: 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-2015-0621 published?: CVE-2015-0621 was published on 2015-02-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cisco:telepresence_mcu_4500_series_software:4.5\(1.45\):*:*:*:*:*:*:*

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