Unified Ip Phone 7906Hardware / appliance · Cisco
CVE-2011-1603
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedCisco Unified IP Phones 7900 devices (aka TNP phones) with software before 9.2.1 allow local users to gain privileges via unspecified vectors, aka Bug ID CSCtn65815.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceLocal privilege escalation vulnerability in Cisco Unified IP Phones 7900 series (TNP phones) running software versions prior to 9.2.1. An authenticated local user can exploit unspecified vectors to gain elevated privileges on the device, potentially accessing administrative functions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Unified Ip Phone 7906Hardware / appliance
all versions
Unified Ip Phone 7911gHardware / appliance
all versions
Unified Ip Phone 7931gHardware / appliance
all versions
Unified Ip Phone 7941gHardware / appliance
all versions
Unified Ip Phone 7941g GeHardware / appliance
all versions
Unified Ip Phone 7942gHardware / appliance
all versions
Unified Ip Phone 7945gHardware / appliance
all versions
Unified Ip Phone 7961gHardware / appliance
all versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- M
- Authentication
- Single
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:L/AC:M/Au:S/C:C/I:C/A:C
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Inventory Cisco Unified IP Phone 7900 series devicesReview your network inventory or Cisco CallManager/Unity device list to identify if any of these models are deployed: 7906, 7911g, 7931g, 7941g, 7941g Ge, 7942g, 7945g, or 7961gAffected if Any of these phone models are present in the environment
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Check phone firmware versionAccess the phone's web interface (if enabled) or query via Cisco CallManager administration console to retrieve the current firmware load version. On the physical phone, press Settings > Model Information > firmware versionAffected if Firmware version is prior to 9.2.1 (for example, 9.0, 8.x, or earlier)
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Verify local access availabilityDetermine if the phone allows local console access, SSH, or telnet administration. Check device security settings in Cisco CallManager under Device > Device Settings > Phone Security ProfileAffected if Local administrative access methods (console, SSH, or telnet) are enabled on the phone
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Check for unauthorized local accountsIf local access is available, review the phone's local user accounts and privilege levels by accessing the device configuration or examining authentication logsAffected if Unexpected local accounts exist or privilege escalation has already occurred
If any Cisco Unified IP Phone 7900 series model is deployed with firmware versions prior to 9.2.1, the environment is affected by this privilege escalation vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade Cisco Unified IP Phone 7900 firmware to version 9.2.1 or later. In enterprise deployments, this is typically managed through Cisco CallManager/Unity by applying the appropriate device load and performing a firmware distribution to affected phones.
Fix this in Unified Ip Phone 7906
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-1603 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2011-1603 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data