CWE-923
Allowed-with-ReviewImproper Restriction of Communication Channel to Intended Endpoints
Abstraction: Class · Status: Incomplete
The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.
119 vulnerabilities reference this CWE, most recent first.
GHSA-JFPG-VJR8-FP9V
Vulnerability from github – Published: 2026-03-25 21:30 – Updated: 2026-03-25 21:30IBM Concert 1.0.0 through 2.2.0 could allow a privileged user to perform unauthorized actions due to improper restriction of channel communication to intended endpoints.
{
"affected": [],
"aliases": [
"CVE-2025-36438"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T21:16:25Z",
"severity": "MODERATE"
},
"details": "IBM Concert 1.0.0 through 2.2.0 could allow a privileged user to perform unauthorized actions due to improper restriction of channel communication to intended endpoints.",
"id": "GHSA-jfpg-vjr8-fp9v",
"modified": "2026-03-25T21:30:36Z",
"published": "2026-03-25T21:30:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-36438"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7267105"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JGFQ-JQM8-RPFV
Vulnerability from github – Published: 2026-08-07 00:31 – Updated: 2026-08-07 00:31Improper restriction of communication channel to intended endpoints in Azure SQL Managed Instance allows an unauthorized attacker to elevate privileges over a network.
{
"affected": [],
"aliases": [
"CVE-2026-62836"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-07T00:16:34Z",
"severity": "HIGH"
},
"details": "Improper restriction of communication channel to intended endpoints in Azure SQL Managed Instance allows an unauthorized attacker to elevate privileges over a network.",
"id": "GHSA-jgfq-jqm8-rpfv",
"modified": "2026-08-07T00:31:23Z",
"published": "2026-08-07T00:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62836"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62836"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JQ2W-P8GP-86FV
Vulnerability from github – Published: 2022-09-02 00:01 – Updated: 2022-09-08 00:00An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured.
{
"affected": [],
"aliases": [
"CVE-2022-2663"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-01T21:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured.",
"id": "GHSA-jq2w-p8gp-86fv",
"modified": "2022-09-08T00:00:29Z",
"published": "2022-09-02T00:01:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2663"
},
{
"type": "WEB",
"url": "https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"
},
{
"type": "WEB",
"url": "https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T"
},
{
"type": "WEB",
"url": "https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl@dgl.cx/T"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5257"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2022/08/30/1"
},
{
"type": "WEB",
"url": "https://www.youtube.com/watch?v=WIq-YgQuYCA"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JVWV-XXR5-8965
Vulnerability from github – Published: 2026-07-10 00:31 – Updated: 2026-07-10 00:31An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause license exhaustion.
Due to an incorrect initialization, a process which should only be able to communicate internally within the device, can be reached over the network via an open port. This leads to unauthorized access to the license management.
This issue affects all Junos OS Evolved versions before 23.2R2-EVO.
{
"affected": [],
"aliases": [
"CVE-2026-57028"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-09T22:17:08Z",
"severity": "MODERATE"
},
"details": "An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause license exhaustion.\n\n\nDue to an incorrect initialization, a process which should only be able to communicate internally within the device, can be reached over the network via an open port. This leads to unauthorized access to the license management.\n\nThis issue affects all Junos OS Evolved versions before 23.2R2-EVO.",
"id": "GHSA-jvwv-xxr5-8965",
"modified": "2026-07-10T00:31:26Z",
"published": "2026-07-10T00:31:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57028"
},
{
"type": "WEB",
"url": "https://supportportal.juniper.net/JSA110088"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:X/RE:M/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-M5W6-R57X-W289
Vulnerability from github – Published: 2026-05-26 18:31 – Updated: 2026-05-26 18:31IBM watsonx.data 2.2 through 2.3.1 IBM Lakehouse does not properly restrict inbound and outbound connections which could allow an attacker to transfer or modify files without restrictions.
{
"affected": [],
"aliases": [
"CVE-2025-36145"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-26T17:16:28Z",
"severity": "MODERATE"
},
"details": "IBM watsonx.data 2.2 through 2.3.1 IBM Lakehouse does not properly restrict inbound and outbound connections which could allow an attacker to transfer or modify files without restrictions.",
"id": "GHSA-m5w6-r57x-w289",
"modified": "2026-05-26T18:31:45Z",
"published": "2026-05-26T18:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-36145"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7272498"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-M9G2-WM3W-Q6RV
Vulnerability from github – Published: 2025-04-08 15:31 – Updated: 2025-04-08 15:31A improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in Fortinet FortiOS version 7.4.0 through 7.4.4, 7.2.0 through 7.2.8, 7.0.0 through 7.0.15, 6.4.0 through 6.4.15 and before 6.2.16, Fortinet FortiProxy version 7.4.0 through 7.4.2, 7.2.0 through 7.2.9 and before 7.0.15, Fortinet FortiManager version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and before 6.2.13, Fortinet FortiAnalyzer version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and before 6.2.13, Fortinet FortiVoice version 7.0.0 through 7.0.2 before 6.4.8 and Fortinet FortiWeb before 7.4.2 may allow an unauthenticated attacker in a man-in-the-middle position to impersonate the management device (FortiCloud server or/and in certain conditions, FortiManager), via intercepting the FGFM authentication request between the management device and the managed device
{
"affected": [],
"aliases": [
"CVE-2024-26013"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-08T14:15:30Z",
"severity": "HIGH"
},
"details": "A improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in Fortinet FortiOS version 7.4.0 through 7.4.4, 7.2.0 through 7.2.8, 7.0.0 through 7.0.15, 6.4.0 through 6.4.15 and before 6.2.16, Fortinet FortiProxy version 7.4.0 through 7.4.2, 7.2.0 through 7.2.9 and before 7.0.15, Fortinet FortiManager version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and before 6.2.13, Fortinet FortiAnalyzer version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and before 6.2.13, Fortinet FortiVoice version 7.0.0 through 7.0.2 before 6.4.8 and Fortinet FortiWeb before 7.4.2 may allow an unauthenticated attacker in a man-in-the-middle position to impersonate the management device (FortiCloud server or/and in certain conditions, FortiManager), via intercepting the FGFM authentication request between the management device and the managed device",
"id": "GHSA-m9g2-wm3w-q6rv",
"modified": "2025-04-08T15:31:04Z",
"published": "2025-04-08T15:31:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26013"
},
{
"type": "WEB",
"url": "https://fortiguard.fortinet.com/psirt/FG-IR-24-046"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MF72-879W-MMHR
Vulnerability from github – Published: 2025-08-12 18:31 – Updated: 2025-08-12 18:31Improper restriction of communication channel to intended endpoints in Windows Hyper-V allows an authorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2025-48807"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-12T18:15:28Z",
"severity": "HIGH"
},
"details": "Improper restriction of communication channel to intended endpoints in Windows Hyper-V allows an authorized attacker to execute code locally.",
"id": "GHSA-mf72-879w-mmhr",
"modified": "2025-08-12T18:31:30Z",
"published": "2025-08-12T18:31:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48807"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48807"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MFJ5-2M3J-P83G
Vulnerability from github – Published: 2025-06-12 06:30 – Updated: 2025-06-12 06:30Improper restriction of communication channel to intended endpoints issue exists in UpdateNavi V1.4 L10 to L33 and UpdateNaviInstallService Service 1.2.0091 to 1.2.0125. If a local authenticated attacker send malicious data, an arbitrary registry value may be modified or arbitrary code may be executed.
{
"affected": [],
"aliases": [
"CVE-2025-35978"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-12T06:15:23Z",
"severity": "MODERATE"
},
"details": "Improper restriction of communication channel to intended endpoints issue exists in UpdateNavi V1.4 L10 to L33 and UpdateNaviInstallService Service 1.2.0091 to 1.2.0125. If a local authenticated attacker send malicious data, an arbitrary registry value may be modified or arbitrary code may be executed.",
"id": "GHSA-mfj5-2m3j-p83g",
"modified": "2025-06-12T06:30:28Z",
"published": "2025-06-12T06:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-35978"
},
{
"type": "WEB",
"url": "https://azby.fmworld.net/support/security/information/updatenavi202506"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/jp/JVN17860456"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-MFQW-44WG-MRPF
Vulnerability from github – Published: 2024-07-08 12:31 – Updated: 2024-07-11 15:30The interactive service in OpenVPN 2.6.9 and earlier allows the OpenVPN service pipe to be accessed remotely, which allows a remote attacker to interact with the privileged OpenVPN interactive service.
{
"affected": [],
"aliases": [
"CVE-2024-24974"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-08T11:15:10Z",
"severity": "HIGH"
},
"details": "The interactive service in OpenVPN 2.6.9 and earlier allows the OpenVPN service pipe to be accessed remotely, which allows a remote attacker to interact with the privileged OpenVPN interactive service.",
"id": "GHSA-mfqw-44wg-mrpf",
"modified": "2024-07-11T15:30:44Z",
"published": "2024-07-08T12:31:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-24974"
},
{
"type": "WEB",
"url": "https://community.openvpn.net/openvpn/wiki/CVE-2024-24974"
},
{
"type": "WEB",
"url": "https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974"
},
{
"type": "WEB",
"url": "https://www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07534.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MP2W-H9WF-5497
Vulnerability from github – Published: 2025-06-10 18:32 – Updated: 2025-06-10 18:32An improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in FortiOS 7.6.0, 7.4.0 through 7.4.5, 7.2 all versions, 7.0 all versions, 6.4 all versions may allow an unauthenticated attacker to inject unauthorized sessions via crafted FGSP session synchronization packets.
{
"affected": [],
"aliases": [
"CVE-2025-22251"
],
"database_specific": {
"cwe_ids": [
"CWE-923"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-10T17:21:08Z",
"severity": "LOW"
},
"details": "An improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in FortiOS 7.6.0, 7.4.0 through 7.4.5, 7.2 all versions, 7.0 all versions, 6.4 all versions may allow an unauthenticated attacker to inject unauthorized sessions via crafted FGSP session synchronization packets.",
"id": "GHSA-mp2w-h9wf-5497",
"modified": "2025-06-10T18:32:27Z",
"published": "2025-06-10T18:32:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22251"
},
{
"type": "WEB",
"url": "https://fortiguard.fortinet.com/psirt/FG-IR-24-287"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
No mitigation information available for this CWE.
CAPEC-161: Infrastructure Manipulation
An attacker exploits characteristics of the infrastructure of a network entity in order to perpetrate attacks or information gathering on network objects or effect a change in the ordinary information flow between network objects. Most often, this involves manipulation of the routing of network messages so, instead of arriving at their proper destination, they are directed towards an entity of the attackers' choosing, usually a server controlled by the attacker. The victim is often unaware that their messages are not being processed correctly. For example, a targeted client may believe they are connecting to their own bank but, in fact, be connecting to a Pharming site controlled by the attacker which then collects the user's login information in order to hijack the actual bank account.
CAPEC-481: Contradictory Destinations in Traffic Routing Schemes
Adversaries can provide contradictory destinations when sending messages. Traffic is routed in networks using the domain names in various headers available at different levels of the OSI model. In a Content Delivery Network (CDN) multiple domains might be available, and if there are contradictory domain names provided it is possible to route traffic to an inappropriate destination. The technique, called Domain Fronting, involves using different domain names in the SNI field of the TLS header and the Host field of the HTTP header. An alternative technique, called Domainless Fronting, is similar, but the SNI field is left blank.
CAPEC-501: Android Activity Hijack
An adversary intercepts an implicit intent sent to launch a Android-based trusted activity and instead launches a counterfeit activity in its place. The malicious activity is then used to mimic the trusted activity's user interface and prompt the target to enter sensitive data as if they were interacting with the trusted activity.
CAPEC-697: DHCP Spoofing
An adversary masquerades as a legitimate Dynamic Host Configuration Protocol (DHCP) server by spoofing DHCP traffic, with the goal of redirecting network traffic or denying service to DHCP.