VulnerabilityPublished 4 Mar 2026

CVE-2026-20002: Cisco Secure Firewall Management Center (FMC) · SQL Injection

Affects Cisco Secure Firewall Management Center (FMC)Source CVE Database V5

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Not known to be exploited · CVSS 8.1 High.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score

8.1High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
CiscoCisco Secure Firewall Management Center (FMC)	Affected 6.4.0 – 7.7.10.1 79 affected builds	Fixed in–

AI-suggested

Organizations should immediately verify if their Cisco Secure FMC deployments are running affected versions and prioritize upgrading to patched versions once available from Cisco. Until patches are released, implement strict access controls to limit FMC management interface access to trusted administrators only, ideally via VPN or secure management networks. Enforce strong authentication mechanisms, including multi-factor authentication, to reduce the risk of credential compromise. Monitor FMC logs for unusual query patterns or access attempts indicative of SQL injection attempts. Employ web application firewalls (WAFs) with custom rules to detect and block SQL injection payloads targeting the FMC interface. Regularly audit user accounts and permissions to ensure least privilege principles are enforced. Additionally, segment FMC infrastructure from general user networks to reduce attack surface. Finally, maintain up-to-date backups of FMC configurations and databases to enable recovery in case of compromise.

Description

A vulnerability in the web-based management interface of Cisco Secure FMC Software could allow an authenticated, remote attacker to conduct SQL injection attacks on an affected system. This vulnerability is due to inadequate validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted requests to an affected device. A successful exploit could allow the attacker to obtain full access to the database and read certain files on the underlying operating system. To exploit this vulnerability, the attacker would need valid user credentials.

Impact

The impact of this vulnerability is substantial for organizations relying on Cisco Secure FMC for firewall and security policy management. Successful exploitation can lead to unauthorized disclosure of sensitive configuration data, security policies, and potentially credentials stored in the FMC database. Attackers gaining database access can manipulate or exfiltrate critical security information, undermining network defenses and enabling further attacks. Reading files on the underlying operating system could allow attackers to escalate privileges or pivot within the network. Since FMC is a central management platform for security devices, compromise could cascade into broader network security failures. The requirement for valid credentials limits exposure to insider threats or attackers who have already breached perimeter defenses. However, given the widespread use of Cisco FMC in enterprise, government, and critical infrastructure sectors globally, the potential for significant operational disruption and data breaches is high.

References

sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-sql-injection-2qH6CcJd (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 11 Mar 2026, 19:57 UTC

Technical details

References

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