CVE-2024-11944 [High] | Path Traversal in Truenas Firmware

iXsystems TrueNAS CORE tarfile.extractall Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of iXsystems TrueNAS devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the tarfile.extractall method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-25626.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	3.24%	1.60%	-1.64%
2	2026-05-21	2.41%	3.24%	+0.83%
3	2026-02-15	—	2.41%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

3.24%

1.60%

-1.64%

2026-05-21

2.41%

3.24%

+0.83%

2026-02-15

—

2.41%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.1	HIGH	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:A) Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet. 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.	2.8	5.9	[email protected]
7.5	3.0	HIGH	`CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:A) Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet. Attack complexity (AC:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. 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.	1.6	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.8

3.1

HIGH

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

Attack vector (AV:A): Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
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.

2.8

5.9

[email protected]

7.5

3.0

HIGH

CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:A): Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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.

1.6

5.9

[email protected]

Affected software / configurations for CVE-2024-11944

Vendor	Product	Version	Raw CPE
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:-::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:beta1::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:rc1::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u1::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u1.1::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u2::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u3::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u3.1::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u4::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u5::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u5.1::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u5.2::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u5.3::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u6::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u6.1::::::
ixsystems	truenas_firmware	13.0	cpe:2.3:o:ixsystems:truenas_firmware:13.0:u6.2::::::

References for CVE-2024-11944

URL	Tags
https://www.truenas.com/docs/core/13.0/gettingstarted/corereleasenotes/#130-u63	Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-24-1643/	Third Party Advisory

URL

CVE-2024-11944 | iXsystems TrueNAS CORE tarfile.extractall Directory Traversal Remote Code Execution Vulnerability

Exploit prediction scoring system (EPSS) score for CVE-2024-11944

Common vulnerability scoring system (CVSS) metrics for CVE-2024-11944

Weakness enumeration for CVE-2024-11944

Affected software / configurations for CVE-2024-11944

References for CVE-2024-11944