CVE-2023-7266
Huawei Tc7001-10 Firmware 2.0.0.336\(sp6c300\)
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-7266 is a high-severity Unprotected Alternate Channel (CWE-420) vulnerability in Huawei Tc7001-10 Firmware. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Fallback Channels (T1008); ranked at the 19th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SC-8 (Transmission Confidentiality and Integrity) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-59680
Vulnerability Data
Some Huawei home routers have a connection hijacking vulnerability. Successful exploitation of this vulnerability may cause DoS or information leakage.(Vulnerability ID:HWPSIRT-2023-76605) This vulnerability has been assigned a (CVE)ID:CVE-2023-7266
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Transmission confidentiality and integrity requirements apply to all transmitted data, preventing weaker protection on secondary channels.
Information flow enforcement requires consistent authorization and control over every path, directly stopping unequal protection of alternate channels.
Boundary protection mandates monitoring and control at all external and key internal interfaces, eliminating unprotected alternate channels.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Network monitoring can surface use of unprotected alternate channels but does not prevent the design flaw.
Protecting all data-in-transit directly mitigates unequal channel protection though the control addresses broader transit scenarios.
Network protection from unauthorized access inherently requires securing every channel, not just primaries.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Network security controls ensure all channels receive equivalent protection, directly addressing unprotected alternate channels.
A.8.21 ensures that network services have identified and enforced security features (authentication, encryption, access rules, monitoring) on allowed channels; it does not address or stop exploitation of an unprotected alternate channel that the product itself leaves exposed.
Network segregation can reduce exposure of alternate channels but does not guarantee equivalent protection levels.
A.8.3's core (access restriction per policies, config mechanisms, identity/group controls, isolation, dynamic techniques with auth/encryption/time-bound rules) stops exploitation of unprotected alternate channels in the dominant case of differing logical protections; the bounded remainder is physical alternate channels (explicitly scoped to PE family in analogous 800-53 anchors) plus fully external channels outside any managed system/app/service.