A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated…
A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to execute arbitrary commands as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Java byte stream from a host that is configured in the external database access list. An attacker could exploit this vulnerability by sending a crafted, serialized Java byte stream to a specific TCP port of an affected device. A successful exploit could allow the attacker to execute arbitrary co
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Cisco, Oracle
- Product
- java
- CVSS
- 9.8
- Exposure class
- Edge / VPN / firewall
Why it ranks 36 (Notable)
- CVSS 9.8 critical
- Exposed product class: edge / VPN / firewall
- Widely deployed vendor product (Cisco)
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-20242 on this site · NVD · CVE.org · Vulnpedia
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