Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
Vulnerability Details :

CVE-2026-59998

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-08 Jul, 2026 | 00:11
Updated At-08 Jul, 2026 | 13:48
Rejected At-
Credits

sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:08 Jul, 2026 | 00:11
Updated At:08 Jul, 2026 | 13:48
Rejected At:
▼CVE Numbering Authority (CNA)

sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.

Affected Products
Vendor
OpenBSDOpenBSD
Product
OpenSSH
Default Status
unaffected
Versions
Affected
  • From 0 before 10.4 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-573CWE-573 Improper Following of Specification by Caller
Type: CWE
CWE ID: CWE-573
Description: CWE-573 Improper Following of Specification by Caller
Metrics
VersionBase scoreBase severityVector
3.14.8MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Version: 3.1
Base score: 4.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.openwall.com/lists/oss-security/2026/07/06/5
N/A
https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2
N/A
https://www.openssh.org/releasenotes.html#10.4p1
N/A
Hyperlink: https://www.openwall.com/lists/oss-security/2026/07/06/5
Resource: N/A
Hyperlink: https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2
Resource: N/A
Hyperlink: https://www.openssh.org/releasenotes.html#10.4p1
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:08 Jul, 2026 | 01:16
Updated At:09 Jul, 2026 | 16:55

sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.14.8MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Primary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
N/A
Type: Secondary
Version: 3.1
Base score: 4.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Type: Primary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches
OpenBSD
openbsd
>>openssh>>Versions before 10.4(exclusive)
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-573Secondarycve@mitre.org
CWE ID: CWE-573
Type: Secondary
Source: cve@mitre.org
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2cve@mitre.org
Release Notes
https://www.openssh.org/releasenotes.html#10.4p1cve@mitre.org
Release Notes
https://www.openwall.com/lists/oss-security/2026/07/06/5cve@mitre.org
Mailing List
Release Notes
Hyperlink: https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2
Source: cve@mitre.org
Resource:
Release Notes
Hyperlink: https://www.openssh.org/releasenotes.html#10.4p1
Source: cve@mitre.org
Resource:
Release Notes
Hyperlink: https://www.openwall.com/lists/oss-security/2026/07/06/5
Source: cve@mitre.org
Resource:
Mailing List
Release Notes

Change History

0
Information is not available yet

Similar CVEs

2Records found
CVE-2023-51385
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.5||MEDIUM
EPSS-19.75% / 97.11%
||
7 Day CHG~0.00%
Published-18 Dec, 2023 | 00:00
Updated-14 Jul, 2026 | 12:33
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.

Action-Not Available
Vendor-n/aSiemens AGOpenBSDDebian GNU/Linux
Product-opensshdebian_linuxn/aSIMATIC S7-1500 CPU 1518F-4 PN/DP MFPSIMATIC S7-1500 CPU 1518-4 PN/DP MFPSIPLUS S7-1500 CPU 1518-4 PN/DP MFP
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2014-2653
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.5||MEDIUM
EPSS-1.99% / 78.40%
||
7 Day CHG~0.00%
Published-27 Mar, 2014 | 10:00
Updated-28 May, 2026 | 18:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The verify_host_key function in sshconnect.c in the client in OpenSSH 6.6 and earlier allows remote servers to trigger the skipping of SSHFP DNS RR checking by presenting an unacceptable HostCertificate.

Action-Not Available
Vendor-n/aOpenBSD
Product-opensshn/a
CWE ID-CWE-20
Improper Input Validation
Details not found