Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-11.0.1.8)

high Nessus Plugin ID 339446

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Synopsis

The Nutanix AHV host is affected by multiple vulnerabilities .

Description

The version of AHV installed on the remote host is prior to 11.0.1.8. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AHV-11.0.1.8 advisory.

- A flaw was found in gnutls. Servers configured with RSA-PSK (RivestShamirAdleman Pre-Shared Key) wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass. This vulnerability allows an attacker to gain unauthorized access by circumventing the authentication process.
(CVE-2026-42010)

- Issue summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send contents of an uninitialized memory buffer to a malicious peer. Impact summary: The uninitialized buffer might contain sensitive data from the previous execution of the application process which leads to sensitive data leakage to an attacker. RSA_public_encrypt() returns the number of bytes written on success and -1 on error. The affected code tests only whether the return value is non-zero. As a result, if RSA encryption fails, encapsulation can still return success to the caller, set the output lengths, and leave the caller to use the contents of the ciphertext buffer as if a valid KEM ciphertext had been produced. If applications use EVP_PKEY_encapsulate() with RSA/RSASVE on an attacker-supplied invalid RSA public key without first validating that key, then this may cause stale or uninitialized contents of the caller- provided ciphertext buffer to be disclosed to the attacker in place of the KEM ciphertext. As a workaround calling EVP_PKEY_public_check() or EVP_PKEY_public_check_quick() before EVP_PKEY_encapsulate() will mitigate the issue. The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.1 and 3.0 are affected by this issue.
(CVE-2026-31790)

- Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow. (CVE-2026-5450)

- An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.
(CVE-2024-34459)

- A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service. (CVE-2026-33845)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the Nutanix AHV software to the recommended version. Before upgrading: if this cluster is registered with Prism Central, ensure that Prism Central has been upgraded first to a compatible version. Refer to the Software Product Interoperability page on the Nutanix portal.

Plugin Details

Severity: High

ID: 339446

File Name: nutanix_NXSA-AHV-11_0_1_8.nasl

Version: 1.1

Type: Local

Family: Misc.

Published: 8/25/2026

Updated: 8/25/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 96.23

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-42010

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.6

Threat Score: 6.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-42246

Vulnerability Information

CPE: cpe:/o:nutanix:ahv

Required KB Items: Host/Nutanix/Data/Node/Version, Host/Nutanix/Data/Node/Type

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/25/2026

Vulnerability Publication Date: 12/12/2023

Reference Information

CVE: CVE-2024-34459, CVE-2025-10911, CVE-2026-2291, CVE-2026-31790, CVE-2026-33845, CVE-2026-33846, CVE-2026-34982, CVE-2026-35177, CVE-2026-3833, CVE-2026-41316, CVE-2026-41411, CVE-2026-42009, CVE-2026-42010, CVE-2026-42011, CVE-2026-42012, CVE-2026-42013, CVE-2026-42014, CVE-2026-42015, CVE-2026-42246, CVE-2026-42258, CVE-2026-46483, CVE-2026-4890, CVE-2026-4891, CVE-2026-4892, CVE-2026-4893, CVE-2026-5260, CVE-2026-5419, CVE-2026-5450

Detections

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