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CVE-2026-90823

FatPipe MPVPN, WARP, and IPVPN appliances running the end-of-life firmware version 10.1.2r60p100 contain a stack-based buffer overflow in…

Critical9.8EPSS 0.68%
Published
Updated
Reserved
Assigned by
Securifera

Description

FatPipe MPVPN, WARP, and IPVPN appliances running the end-of-life firmware version 10.1.2r60p100 contain a stack-based buffer overflow in /usr/sbin/auth_user_pass. An unauthenticated remote attacker with access to the affected management interface can submit a crafted authentication request that reaches an unchecked copy into a fixed-size stack buffer, potentially allowing arbitrary code execution as root. The affected management interface is disabled by default and must be affirmatively enabled by the customer before the endpoint becomes reachable. FatPipe recommends restricting management access to trusted administrative networks and using WAN access control lists to limit access to trusted sources. Customers running the affected end-of-life firmware can contact FatPipe Support for help confirming their firmware version and upgrading to a current supported release at https://www.fatpipeinc.com/support/support, [email protected], or +1 800-724-8521 (option 3).

Scores

CVSS scores of CVE-2026-90823, by who scored it
Scored byCVSSScoreVector
SecuriferaCNA (assigner)3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Deferred3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.68% · top 48% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

Affected products

What to do

Solution: Customers running the affected end-of-life firmware should contact FatPipe Support to upgrade their appliances to the latest supported software release. The vulnerability has been addressed in current FatPipe software, and a remediated release is already available. As an interim mitigation pending the upgrade, leave the affected management interface disabled if it is not required, restrict management access to trusted administrative networks, use WAN access control lists to permit connections only from authorized source addresses, and avoid exposing the management interface directly to the public Internet.

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .