Buffer overflow in the Smart Call Home implementation in Cisco NX-OS on Fabric Interconnects in Cisco Unified Computing System 1.4 before 1.
Buffer overflow in the Smart Call Home implementation in Cisco NX-OS on Fabric Interconnects in Cisco Unified Computing System 1.4 before 1.4(1i), NX-OS 5.0 before 5.0(3)U2(2) on Nexus 3000 devices, NX-OS 4.1 before 4.1(2)E1(1l) on Nexus 4000 devices, NX-OS 5.x before 5.1(3)N1(1) on Nexus 5000 devices, NX-OS 5.2 before 5.2(3a) on Nexus 7000 devices, and CG-OS CG4 before CG4(2) on Connected 1000 Connected Grid Routers allows remote SMTP servers to execute arbitrary code via a crafted reply, aka Bug IDs CSCtk00695, CSCts56633, CSCts56632, CSCts56628, CSCug14405, and CSCuf61322.
- Published
- May 25, 2014
- Updated
- Jun 16, 2026
- EPSS
- 2.0% · 79th percentile
- CWE
- CWE-119
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Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.6 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.0%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| cisco | unified computing system 6120xp fabric interconnect | cpe:2.3:h:cisco:unified_computing_system_6120xp_fabric_interconnect |
| cisco | unified computing system 6140xp fabric interconnect | cpe:2.3:h:cisco:unified_computing_system_6140xp_fabric_interconnect |
| cisco | unified computing system 6248up fabric interconnect | cpe:2.3:h:cisco:unified_computing_system_6248up_fabric_interconnect |
| cisco | unified computing system 6296up fabric interconnect | cpe:2.3:h:cisco:unified_computing_system_6296up_fabric_interconnect |
| cisco | unified computing system infrastructure and unified computing system software | cpe:2.3:o:cisco:unified_computing_system_infrastructure_and_unified_computing_system_software |
| cisco | cg-os | cpe:2.3:o:cisco:cg-os |
| cisco | cgr 1120 | cpe:2.3:h:cisco:cgr_1120 |
| cisco | cgr 1240 | cpe:2.3:h:cisco:cgr_1240 |
| cisco | nx-os | cpe:2.3:o:cisco:nx-os |
| cisco | nexus 7000 | cpe:2.3:h:cisco:nexus_7000 |
| cisco | nexus 7000 10-slot | cpe:2.3:h:cisco:nexus_7000_10-slot |
| cisco | nexus 7000 18-slot | cpe:2.3:h:cisco:nexus_7000_18-slot |
and 15 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- cisco cg-oscg4
- cisco cg-oscg4(1)
- cisco cgr 1120all versions
- cisco cgr 1240all versions
- cisco nexus 3016qall versions
- cisco nexus 3048all versions
- cisco nexus 3064tall versions
- cisco nexus 3064xall versions
- cisco nexus 3548all versions
- cisco nexus 4001iall versions
- cisco nexus 5000all versions
- cisco nexus 5010all versions
- cisco nexus 5010p switchall versions
- cisco nexus 5020all versions
- cisco nexus 5020p switchall versions
- cisco nexus 5548pall versions
- cisco nexus 5548upall versions
- cisco nexus 5596upall versions
- cisco nexus 7000all versions
- cisco nexus 7000 10-slotall versions
Same product
cisco: all recordsOther highest-scoring records for the same primary product.
- CVE-2013-3467Memory leak in the CLI component on Cisco Unified Computing System (UCS) 6100 Fabric Interconnect devices, in certain situations that lack a18Monitor
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.
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.
Credits
All researchersFinders, 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
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- High
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
AV:N/AC:H/Au:N/C:C/I:C/A:C
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.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
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 helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.