Intel

CVE-2026-3497

Siemens ProductCERT Advisory SSA-019113

highEPSS 2.2%

Description

A flaw was found in the OpenSSH GSSAPI (Generic Security Service Application Program Interface) delta patches, as included in various Linux distributions. A remote attacker could exploit this by sending an unexpected GSSAPI message type during the key exchange process. This occurs because the `sshpkt_disconnect()` function, when called on an error, does not properly terminate the process, leading to the continued execution of the program with uninitialized connection variables. Accessing these uninitialized variables can lead to undefined behavior, potentially resulting in information disclosure or a denial of service.

Source: BSIBSI_CSAFSIEMENS_ADVISORYREDHAT_CSAFBSIBSI_CSAFREDHAT_CSAFSUSE_CSAFREDHAT_CSAFREDHAT_CSAFREDHAT_CSAFREDHAT_CSAFREDHAT_CSAFDEBIAN_DSAREDHAT_CSAFREDHAT_CSAFREDHAT_CSAFREDHAT_CSAFREDHAT_CSAFREDHAT_CSAFCVELISTV5NVDCVEORG

Metrics

Severity
high
Priority score
217.94
KEV status
—
Exploit maturity
no public PoC known
XIEM Effective CVSS
7.5
Source: nvd-v3
CVSS v3
7.5
CVSS v4
2.7
EPSS percentile
81.3 %
Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
EPSS score
2.2 %
Moderate — model estimates 1-10% exploitation likelihood.
Published
2021-09-26 00:00 UTC
CWE
CWE-908

Weakness classes (CWE)

  • CWE-908Base

    Use of Uninitialized Resource

    The product uses or accesses a resource that has not been initialized.

    cwe.mitre.org →

Affected operating systems

  • linux

    amazon / amazon_linux

  • linux

    ubuntu / awsbionic

  • linux

    ubuntu / awsjammy

  • linux

    ubuntu / awsnoble

  • linux

    ubuntu / awsresolute

  • linux

    ubuntu / awsxenial

  • linux

    ubuntu / aws-6.8jammy

  • linux

    ubuntu / aws-hwexenial

  • linux

    ubuntu / azurejammy

  • linux

    ubuntu / azurenoble

  • linux

    ubuntu / azureresolute

  • linux

    ubuntu / azurexenial

  • linux

    ubuntu / azure-4.15bionic

  • linux

    suse / basesystem_module15

  • linux

    debian / debian_linux11.0

  • linux

    debian / debian_linux12.0

  • linux

    debian / debian_linux13.0

  • linux

    suse / development_tools_module15

  • linux

    redhat / enterprise_linux10.0

  • linux

    redhat / enterprise_linux7.0

  • linux

    redhat / enterprise_linux8.0

  • linux

    redhat / enterprise_linux9.0

  • linux

    redhat / enterprise_linux_aus8.4

  • linux

    redhat / enterprise_linux_aus8.6

Affected products

Products and version ranges extracted from the vendor/CERT advisory. A range like „<4.14.6“ implies the update recommendation „upgrade to 4.14.6 or later“.

  • arista

    cloudvision_agni2024.4.0 – 2025.2.2

  • arista

    cloudvision_portal2024.2.0 – 2026.1.0

  • arista

    velocloud_edge4.5.0 – 6.4.1

  • arista

    velocloud_gateway

  • arista

    velocloud_orchestrator

  • canonical

    ubuntu_linux

  • Citrix Systems

    Hypervisor8.2 CU1 LTSR

  • Citrix Systems

    XenServer8.4

  • Dell

    ECS3.8.1.0-3.8.1.7

  • Dell

    NetWorkerVirtual Edition

  • Dell

    NetWorkervProxy 19.13.0.3

  • Dell

    NetWorkervProxy 19.14

  • Dell

    PowerScale OneFS13.2.3

  • Dell

    PowerScale OneFSOneFS

  • Dell

    Secure Connect GatewayAppliance 5.32.00.18

  • gnupg

    libgcrypt1.11.0 – 1.11.3

  • gnupg

    libgcrypt1.12.0 – 1.12.2

  • gnupg

    libgcrypt1.8.8 – 1.10.4

  • Intel

    ProzessorCore Ultra 5

  • Intel

    ProzessorCore Ultra 7

  • Intel

    ProzessorCore Ultra 9

  • julia

    openssh_jll

  • netapp

    active_iq_unified_manager

  • netapp

    clustered_data_ontap

References & sources

Linked CVEs

Show 406 more CVEs
IDCVE-2026-3497
Siemens ProductCERT Advisory SSA-019113 — CVE-2026-3497 | NEOSEC Intel