CASCACascade Atlas

Evidence dossier

CVE-2026-20131

Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability

75.5–90.5Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to execute arbitrary Java code as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Java byte stream. An attacker could exploit this vulnerability by sending a crafted serialized Java object to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary code on the device and elevate privileges to root. Note: If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced.

State
PUBLISHED
Published
Mar 4, 2026
Updated
Mar 25, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS27.55%

2026-07-18 · v2026.06.15 · percentile 97.9%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

ciscooriginal assertion
container

Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability

CISA KEVoriginal assertion
observed_exploitation

Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.275510000000; percentile 0.978560000000

Applicability

Cited product scope

Trace impact →
CiscoCisco Secure Firewall Management Center (FMC)
[{"status": "affected", "version": "7.0.0"}, {"status": "affected", "version": "7.0.0.1"}, {"status": "affected", "version": "7.0.1"}, {"status": "affected", "version": "7.1.0"}, {"status": "affected", "version": "6.4.0.13"}, {"status": "affected", "version": "7.0.1.1"}, {"status": "affected", "version": "6.4.0.14"}, {"status": "affected", "version": "7.1.0.1"}, {"status": "affected", "version": "7.0.2"}, {"status": "affected", "version": "6.4.0.15"}, {"status": "affected", "version": "7.2.0"}, {"status": "affected", "version": "7.0.2.1"}, {"status": "affected", "version": "7.0.3"}, {"status": "affected", "version": "7.1.0.2"}, {"status": "affected", "version": "7.2.0.1"}, {"status": "affected", "version": "7.0.4"}, {"status": "affected", "version": "7.2.1"}, {"status": "affected", "version": "7.0.5"}, {"status": "affected", "version": "6.4.0.16"}, {"status": "affected", "version": "7.3.0"}, {"status": "affected", "version": "7.2.2"}, {"status": "affected", "version": "7.3.1"}, {"status": "affected", "version": "7.2.3"}, {"status": "affected", "version": "7.1.0.3"}, {"status": "affected", "version": "7.2.3.1"}, {"status": "affected", "version": "7.2.4"}, {"status": "affected", "version": "7.0.6"}, {"status": "affected", "version": "7.2.4.1"}, {"status": "affected", "version": "7.2.5"}, {"status": "affected", "version": "7.3.1.1"}, {"status": "affected", "version": "7.4.0"}, {"status": "affected", "version": "6.4.0.17"}, {"status": "affected", "version": "7.0.6.1"}, {"status": "affected", "version": "7.2.5.1"}, {"status": "affected", "version": "7.4.1"}, {"status": "affected", "version": "7.2.6"}, {"status": "affected", "version": "7.4.1.1"}, {"status": "affected", "version": "7.0.6.2"}, {"status": "affected", "version": "6.4.0.18"}, {"status": "affected", "version": "7.2.7"}, {"status": "affected", "version": "7.2.5.2"}, {"status": "affected", "version": "7.3.1.2"}, {"status": "affected", "version": "7.2.8"}, {"status": "affected", "version": "7.6.0"}, {"status": "affected", "version": "7.4.2"}, {"status": "affected", "version": "7.2.8.1"}, {"status": "affected", "version": "7.0.6.3"}, {"status": "affected", "version": "7.4.2.1"}, {"status": "affected", "version": "7.2.9"}, {"status": "affected", "version": "7.0.7"}, {"status": "affected", "version": "7.7.0"}, {"status": "affected", "version": "7.4.2.2"}, {"status": "affected", "version": "7.2.10"}, {"status": "affected", "version": "7.6.1"}, {"status": "affected", "version": "7.4.2.3"}, {"status": "affected", "version": "7.0.8"}, {"status": "affected", "version": "7.6.2"}, {"status": "affected", "version": "7.7.10"}, {"status": "affected", "version": "7.2.10.1"}, {"status": "affected", "version": "7.0.8.1"}, {"status": "affected", "version": "7.6.2.1"}, {"status": "affected", "version": "7.2.10.2"}, {"status": "affected", "version": "7.7.10.1"}, {"status": "affected", "version": "7.4.2.4"}, {"status": "affected", "version": "7.4.3"}, {"status": "affected", "version": "7.7.11"}, {"status": "affected", "version": "7.6.4"}, {"status": "affected", "version": "10.0.0"}, {"status": "affected", "version": "7.4.4"}, {"status": "affected", "version": "7.4.5"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:10.0.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:6.4.0.13:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:6.4.0.14:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:6.4.0.15:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:6.4.0.16:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:6.4.0.17:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:6.4.0.18:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.0.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.1.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.2.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.5:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.6.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.6.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.6.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.7:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.8:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.8.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.1.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.1.0.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.1.0.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.1.0.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.0.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.10:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.10.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.10.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.3.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.4.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.5:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.5.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.5.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.7:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.8:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.8.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.9:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.3.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.3.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.3.1.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.3.1.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.1.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.5:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.2.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.7.10:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.7.10.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:cisco:secure_firewall_management_center:7.7.11:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

10.0
psirt@cisco.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10.0
ciscoCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.