CVE-2024-20412 [Critical] | Information Disclosure in Firepower Threat Defense

A vulnerability in Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000, 2100, 3100, and 4200 Series could allow an unauthenticated, local attacker to access an affected system using static credentials. This vulnerability is due to the presence of static accounts with hard-coded passwords on an affected system. An attacker could exploit this vulnerability by logging in to the CLI of an affected device with these credentials. A successful exploit could allow the attacker to access the affected system and retrieve sensitive information, perform limited troubleshooting actions, modify some configuration options, or render the device unable to boot to the operating system, requiring a reimage of the device.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-03-16	0.05%	0.17%	+0.12%
2	2025-08-19	0.04%	0.05%	+0.01%
3	2025-04-15	—	0.04%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-03-16

0.05%

0.17%

+0.12%

2025-08-19

0.04%

0.05%

+0.01%

2025-04-15

—

0.04%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.3	3.1	CRITICAL	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.5	6.0	[email protected]
8.4	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.5	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.3

3.1

CRITICAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C): Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.5

6.0

[email protected]

8.4

3.1

HIGH

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

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.5

5.9

[email protected]

Affected software / configurations for CVE-2024-20412

Vendor	Product	Version	Raw CPE
cisco	firepower_threat_defense	7.1.0	cpe:2.3:a:cisco:firepower_threat_defense:7.1.0:::::::*
cisco	firepower_threat_defense	7.1.0.1	cpe:2.3:a:cisco:firepower_threat_defense:7.1.0.1:::::::*
cisco	firepower_threat_defense	7.1.0.2	cpe:2.3:a:cisco:firepower_threat_defense:7.1.0.2:::::::*
cisco	firepower_threat_defense	7.1.0.3	cpe:2.3:a:cisco:firepower_threat_defense:7.1.0.3:::::::*
cisco	firepower_threat_defense	7.2.0	cpe:2.3:a:cisco:firepower_threat_defense:7.2.0:::::::*
cisco	firepower_threat_defense	7.2.0.1	cpe:2.3:a:cisco:firepower_threat_defense:7.2.0.1:::::::*
cisco	firepower_threat_defense	7.2.1	cpe:2.3:a:cisco:firepower_threat_defense:7.2.1:::::::*
cisco	firepower_threat_defense	7.2.2	cpe:2.3:a:cisco:firepower_threat_defense:7.2.2:::::::*
cisco	firepower_threat_defense	7.2.3	cpe:2.3:a:cisco:firepower_threat_defense:7.2.3:::::::*
cisco	firepower_threat_defense	7.2.4	cpe:2.3:a:cisco:firepower_threat_defense:7.2.4:::::::*
cisco	firepower_threat_defense	7.2.4.1	cpe:2.3:a:cisco:firepower_threat_defense:7.2.4.1:::::::*
cisco	firepower_threat_defense	7.2.5	cpe:2.3:a:cisco:firepower_threat_defense:7.2.5:::::::*
cisco	firepower_threat_defense	7.2.5.1	cpe:2.3:a:cisco:firepower_threat_defense:7.2.5.1:::::::*
cisco	firepower_threat_defense	7.2.5.2	cpe:2.3:a:cisco:firepower_threat_defense:7.2.5.2:::::::*
cisco	firepower_threat_defense	7.2.6	cpe:2.3:a:cisco:firepower_threat_defense:7.2.6:::::::*
cisco	firepower_threat_defense	7.2.7	cpe:2.3:a:cisco:firepower_threat_defense:7.2.7:::::::*
cisco	firepower_threat_defense	7.3.0	cpe:2.3:a:cisco:firepower_threat_defense:7.3.0:::::::*
cisco	firepower_threat_defense	7.3.1	cpe:2.3:a:cisco:firepower_threat_defense:7.3.1:::::::*
cisco	firepower_threat_defense	7.3.1.1	cpe:2.3:a:cisco:firepower_threat_defense:7.3.1.1:::::::*
cisco	firepower_threat_defense	7.3.1.2	cpe:2.3:a:cisco:firepower_threat_defense:7.3.1.2:::::::*
cisco	firepower_threat_defense	7.4.0	cpe:2.3:a:cisco:firepower_threat_defense:7.4.0:::::::*
cisco	firepower_threat_defense	7.4.1	cpe:2.3:a:cisco:firepower_threat_defense:7.4.1:::::::*
cisco	firepower_threat_defense	7.4.1.1	cpe:2.3:a:cisco:firepower_threat_defense:7.4.1.1:::::::*

References for CVE-2024-20412

URL	Tags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-statcred-dFC8tXT5	Vendor Advisory

URL

CVE-2024-20412

Exploit prediction scoring system (EPSS) score for CVE-2024-20412

Common vulnerability scoring system (CVSS) metrics for CVE-2024-20412

Weakness enumeration for CVE-2024-20412

Affected software / configurations for CVE-2024-20412

References for CVE-2024-20412