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CVE-2011-1637· NVD / CVE Program· CNA cisco

Cisco Unified IP Phones 7900 devices (aka TNP phones) with software before 9.2.1 do not properly verify signatures for software images, whic

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.

LowCVSS 1.5 · v2.0—No exploit No fix recorded
Published
Jun 2, 2011
Updated
Jun 16, 2026
EPSS
0.3% · 17th percentile
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Report tools

JSON

Action score

6

Monitor

Low priority for now.

CVSS
6 / 40 · 1.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

Affected systems

VendorProduct
ciscounified ip phone 7906
ciscounified ip phone 7911g
ciscounified ip phone 7931g
ciscounified ip phone 7941g
ciscounified ip phone 7941g-ge
ciscounified ip phone 7942g
ciscounified ip phone 7945g
ciscounified ip phone 7961g
ciscounified ip phone 7961g-ge
ciscounified ip phone 7962g
ciscounified ip phone 7965g
ciscounified ip phone 7970g

and 3 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • cisco skinny client control protocol softwareup to 9.1\(1\) inclusive
  • cisco skinny client control protocol software1.0(1)
  • cisco skinny client control protocol software1.0(2)
  • cisco skinny client control protocol software1.0(3)
  • cisco skinny client control protocol software1.0(4)
  • cisco skinny client control protocol software1.0(5)
  • cisco skinny client control protocol software1.0(9)
  • cisco skinny client control protocol software1.1(1)
  • cisco skinny client control protocol software1.2(1)
  • cisco skinny client control protocol software1.3(1)
  • cisco skinny client control protocol software1.3(2)
  • cisco skinny client control protocol software1.3(3)
  • cisco skinny client control protocol software1.3(4)
  • cisco skinny client control protocol software1.4(1)
  • cisco skinny client control protocol software1.4(2)
  • cisco skinny client control protocol software2.0(0)
  • cisco skinny client control protocol software2.0(1)
  • cisco skinny client control protocol software3.0
  • cisco skinny client control protocol software3.0(0)
  • cisco skinny client control protocol software3.0(1)

Other highest-scoring records for the same primary product.

  • CVE-2011-1603Cisco Unified IP Phones 7900 devices (aka TNP phones) with software before 9.2.1 allow local users to gain privileges via unspecified vector
    26Monitor
  • CVE-2011-1602The su utility on Cisco Unified IP Phones 7900 devices (aka TNP phones) with software before 9.0.3 allows local users to gain privileges via
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    P · data can be read
    Integrity
    none
    Availability
    none
    Attack complexity
    M
    Confidentiality impact
    P
    Integrity impact
    None
    Availability impact
    None

    CVSS vector

    AV:L/AC:M/Au:S/C:P/I:N/A:N

    nvd-primary

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Noroxi analysis

    No Noroxi analysis for this record yet

    We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

    We use this product, ask for help

    Change log

    No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

    References

    All records