How severe is CVE-2011-1637?

CVE-2011-1637 has a CVSS 2.0 base score of 1.5, rated low severity.

Is CVE-2011-1637 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1637?

CVE-2011-1637 primarily affects Cisco Unified Ip Phone 7906. In total, 147 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1637?

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

When was CVE-2011-1637 published?

CVE-2011-1637 was published on 2011-06-02 and last updated on 2026-06-16.

CVE-2011-1637

CVE-2011-1637 is a low-severity vulnerability in Cisco Unified Ip Phone 7906 with a CVSS 2.0 base score of 1.5. 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 1.5)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Cisco Unified Ip Phone 7906
Published: 2011-06-02
Last modified: 2026-06-16

Description

Cisco Unified IP Phones 7900 devices (aka TNP phones) with software before 9.2.1 do not properly verify signatures for software images, which allows local users to gain privileges via a crafted image, aka Bug ID CSCtn65962.

Frequently asked questions

What is CVE-2011-1637?: Cisco Unified IP Phones 7900 devices (aka TNP phones) with software before 9.2.1 do not properly verify signatures for software images, which allows local users to gain privileges via a crafted image, aka Bug ID CSCtn65962.
How severe is CVE-2011-1637?: CVE-2011-1637 has a CVSS 2.0 base score of 1.5, rated low severity.
Is CVE-2011-1637 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1637?: CVE-2011-1637 primarily affects Cisco Unified Ip Phone 7906. In total, 147 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1637?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1637 published?: CVE-2011-1637 was published on 2011-06-02 and last updated on 2026-06-16.

References

Affected products (147)

cpe:2.3:h:cisco:unified_ip_phone_7906:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7911g:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7931g:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7941g:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7941g-ge:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7942g:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7945g:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7961g:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7961g-ge:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7962g:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7965g:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7970g:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7971g-ge:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_7975g:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:*:sr1:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.0\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.0\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.0\(2\):sr1:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.0\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.0\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.0\(5\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.0\(9\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.1\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.3\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.3\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.3\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.3\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.3\(4\):sr1:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:1.4\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:2.0\(0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:2.0\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:3.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:3.0\(0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:3.0\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:3.0\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:3.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:3.1\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:skinny_client_control_protocol_software:3.1\(2\):*:*:*:*:*:*:*

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