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01 Record

CVE-2026-20321

Cisco Application Policy Infrastructure Controller API Command Injection Vulnerability

MediumPUBLISHEDCNA: cisco
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
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02 Description

Cisco Application Policy Infrastructure Controller API Command Injection Vulnerability

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.43% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 37.4% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-08.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-07 16:11Z21 DAYS AGO
Last updated
2026-10-08 15:33Z20 DAYS AGO
Reserved
2025-10-08
Assigning CNA
cisco
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-544Missing Standardized Error Handling MechanismBase
Data version
5.2
Document digest
960ef3915d33c313978083f2c5092eeb484d3743bbf7169f73a79b08674d78f6

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco Application Policy Infrastructure Controller (APIC)5.3(1d), 5.3(2a), 5.3(2b), 5.3(2c), 5.3(2d), 5.3(2e), 5.3(2f), 6.1(5e), 6.2(1f), 6.2(1g), 6.2(2e)—

06 References