CVE-2026-23808 [Medium] | Code Injection in Arubaos

A vulnerability has been identified in a standardized wireless roaming protocol that could enable a malicious actor to install an attacker-controlled Group Temporal Key (GTK) on a client device. Successful exploitation of this vulnerability could allow a remote malicious actor to perform unauthorized frame injection, bypass client isolation, interfere with cross-client traffic, and compromise network segmentation, integrity, and confidentiality.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-04-05	0.03%	0.07%	+0.05%
2	2026-03-05	—	0.03%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-04-05

0.03%

0.07%

+0.05%

2026-03-05

—

0.03%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.4	3.1	MEDIUM	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N` 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:L) Some sensitive info could get out, but not a total data dump. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:N) Service keeps running; no real outage angle.	2.8	2.5	[email protected]
8.1	3.1	HIGH	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N` 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:N) Service keeps running; no real outage angle.	2.8	5.2	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.4

3.1

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N 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:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:L): Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N): Service keeps running; no real outage angle.

2.8

2.5

[email protected]

8.1

3.1

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N 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:N): Service keeps running; no real outage angle.

2.8

5.2

[email protected]

Affected software / configurations for CVE-2026-23808

Vendor	Product	Version	Raw CPE
arubanetworks	arubaos	>= 6.5.4.0, <= 8.10.0.21	cpe:2.3:o:arubanetworks:arubaos::::::::
arubanetworks	arubaos	>= 8.11.0.0, <= 8.12.0.6	cpe:2.3:o:arubanetworks:arubaos::::::::
arubanetworks	arubaos	>= 8.13.0.0, <= 8.13.1.1	cpe:2.3:o:arubanetworks:arubaos::::::::
arubanetworks	arubaos	>= 10.3.0.0, <= 10.4.1.10	cpe:2.3:o:arubanetworks:arubaos::::::::
arubanetworks	arubaos	>= 10.5.0.0, <= 10.7.2.2	cpe:2.3:o:arubanetworks:arubaos::::::::
arubanetworks	arubaos	10.8.0.0	cpe:2.3:o:arubanetworks:arubaos:10.8.0.0:::::::*

References for CVE-2026-23808

URL	Tags
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05026en_us&docLocale=en_US	Vendor Advisory

URL

CVE-2026-23808 | Client Isolation Bypass via GTK Manipulation

Exploit prediction scoring system (EPSS) score for CVE-2026-23808

Common vulnerability scoring system (CVSS) metrics for CVE-2026-23808

Weakness enumeration for CVE-2026-23808

Affected software / configurations for CVE-2026-23808

References for CVE-2026-23808