How severe is CVE-2015-0603?

CVE-2015-0603 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2015-0603 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0603?

CVE-2015-0603 affects Cisco Unified Ip Phones 9900 Series Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-0603?

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

When was CVE-2015-0603 published?

CVE-2015-0603 was published on 2015-02-07 and last updated on 2026-06-17.

CVE-2015-0603

CVE-2015-0603 is a medium-severity vulnerability in Cisco Unified Ip Phones 9900 Series Firmware with a CVSS 2.0 base score of 4.6. 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 4.6)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Cisco Unified Ip Phones 9900 Series Firmware
Published: 2015-02-07
Last modified: 2026-06-17

Description

Cisco Unified IP 9900 phones with firmware 9.4(.1) and earlier use weak permissions for unspecified files, which allows local users to cause a denial of service (persistent hang or reboot) by writing to a phone's filesystem, aka Bug ID CSCup90474.

Frequently asked questions

What is CVE-2015-0603?: Cisco Unified IP 9900 phones with firmware 9.4(.1) and earlier use weak permissions for unspecified files, which allows local users to cause a denial of service (persistent hang or reboot) by writing to a phone's filesystem, aka Bug ID CSCup90474.
How severe is CVE-2015-0603?: CVE-2015-0603 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2015-0603 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0603?: CVE-2015-0603 affects Cisco Unified Ip Phones 9900 Series Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-0603?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-0603 published?: CVE-2015-0603 was published on 2015-02-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:cisco:unified_ip_phones_9900_series_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Cisco Unified Ip Phones 9900 Series Firmware

CVE-2015-4226 — High (CVSS 7.1): The packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, which…
CVE-2013-5533 — Medium (CVSS 6.0): The image-upgrade functionality on Cisco 9900 Unified IP phones allows local users to gain privileges by placing shell…
CVE-2014-0658 — Medium (CVSS 5.4): Cisco 9900 Unified IP phones allow remote attackers to cause a denial of service (unregistration) via a crafted SIP…
CVE-2015-0602 — Medium (CVSS 5.0): The mobility extension on Cisco Unified IP 9900 phones with firmware 9.4(.1) and earlier allows remote attackers to…
CVE-2015-0600 — Medium (CVSS 5.0): The mobility extension on Cisco Unified IP 9900 phones with firmware 9.4(.1) and earlier allows remote attackers to…
CVE-2013-5532 — Medium (CVSS 5.0): Buffer overflow in the web-application interface on Cisco 9900 IP phones allows remote attackers to cause a denial of…

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