A vulnerability in the Cisco Nexus 9000 Series Platform Leaf Switches for Application Centric Infrastructure (ACI) could allow an unauthenti
A vulnerability in the Cisco Nexus 9000 Series Platform Leaf Switches for Application Centric Infrastructure (ACI) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the affected device. This vulnerability affects Cisco Nexus 9000 Series Leaf Switches (TOR) - ACI Mode and Cisco Application Policy Infrastructure Controller (APIC). More Information: CSCuy93241. Known Affected Releases: 11.2(2x) 11.2(3x) 11.3(1x) 11.3(2x) 12.0(1x). Known Fixed Releases: 11.2(2i) 11.2(2j) 11.2(3f) 11.2(3g) 11.2(3h) 11.2(3l) 11.3(0.236) 11.3(1j) 11.3(2i) 11.3(2j) 12.0(1r).
- Published
- Nov 18, 2016
- Updated
- Jun 16, 2026
- EPSS
- 0.7% · 52th percentile
- CWE
- CWE-119
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Report tools
Action score
26
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.7%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| cisco | application policy infrastructure controller | cpe:2.3:a:cisco:application_policy_infrastructure_controller |
| cisco | nx-os | cpe:2.3:o:cisco:nx-os |
| cisco | nexus 92160yc-x | cpe:2.3:h:cisco:nexus_92160yc-x |
| cisco | nexus 92304qc | cpe:2.3:h:cisco:nexus_92304qc |
| cisco | nexus 9236c | cpe:2.3:h:cisco:nexus_9236c |
| cisco | nexus 9272q | cpe:2.3:h:cisco:nexus_9272q |
| cisco | nexus 93108tc-ex | cpe:2.3:h:cisco:nexus_93108tc-ex |
| cisco | nexus 93120tx | cpe:2.3:h:cisco:nexus_93120tx |
| cisco | nexus 93128tx | cpe:2.3:h:cisco:nexus_93128tx |
| cisco | nexus 93180yc-ex | cpe:2.3:h:cisco:nexus_93180yc-ex |
| cisco | nexus 9332pq | cpe:2.3:h:cisco:nexus_9332pq |
| cisco | nexus 9336pq aci spine | cpe:2.3:h:cisco:nexus_9336pq_aci_spine |
and 7 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- cisco application policy infrastructure controller1.2(2)
- cisco application policy infrastructure controller1.2(3)
- cisco application policy infrastructure controller1.3(1)
- cisco application policy infrastructure controller1.3(2)
- cisco application policy infrastructure controller2.0(1)
- cisco nx-os11.2(2g)
- cisco nx-os11.2(2h)
- cisco nx-os11.2(2i)
- cisco nx-os11.2(3c)
- cisco nx-os11.2(3e)
- cisco nx-os11.2(3h)
- cisco nx-os11.3(1i)
- cisco nx-os11.3(2f)
- cisco nx-os11.3(2h)
- cisco nx-os11.3(2i)
- cisco nx-os12.0(1m)
- cisco nx-os12.0(1n)
- cisco nx-os12.0(1o)
- cisco nx-os12.0(1p)
- cisco nx-os12.0(1q)
Versions reported by the vendor
Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.
n/a Cisco Nexus 9000 Series Platform Leaf Switches for Application Centric Infrastructure (ACI) 11.2(2x) through 12.0(1x)
- Cisco Nexus 9000 Series Platform Leaf Switches for Application Centric Infrastructure (ACI) 11.2(2x) through 12.0(1x)affected
Same product
cisco: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-1581Cisco Application Policy Infrastructure Controller Command Injection and File Upload Vulnerabilities36Monitor
- CVE-2021-1579Cisco Application Policy Infrastructure Controller App Privilege Escalation Vulnerability36Monitor
- CVE-2021-1578Cisco Application Policy Infrastructure Controller Privilege Escalation Vulnerability36Monitor
- CVE-2021-1577Cisco Application Policy Infrastructure Controller Arbitrary File Read and Write Vulnerability36Monitor
- CVE-2023-20011Cisco Application Policy Infrastructure Controller and Cisco Cloud Network Controller Cross-Site Request Forgery Vulnerability35Monitor
- CVE-2019-1682Cisco Application Policy Infrastructure Controller Privilege Escalation Vulnerability31Monitor
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
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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
- www.securityfocus.com/bid/94077
- www.securitytracker.com/id/1037185
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161102-n9kapic
Vendor advisories and official records. Exploit/PoC links are deliberately left out.