VulnerabilityPublished 2 Nov 2026

CVE-2026-101177: Huawei HarmonyOS · Permissions, Privileges, and Access Controls

Affects Huawei HarmonyOSSource CVE Database V5

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Not known to be exploited · CVSS 3.7 Low.

Data as of 2 Nov 2026, 07:28 UTC

CVSS 3.1 base score

3.7Low

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (huawei)	CVSS 3.1	3.7

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector: Network
Attack Complexity: High
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 2 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
HuaweiHarmonyOS	Affected 4.0.0 – 4.3.3 5 affected builds	Fixed in–
HuaweiEMUI	Affected 14.0.0 – 16.0.0 4 affected builds	Fixed in–

AI-suggested

No specific mitigation steps are documented at this time.

Description

CVE-2026-101177 is a permission control vulnerability in the Optimizer module of Huawei HarmonyOS. Exploiting this flaw may impact service confidentiality. The vulnerability affects multiple specific versions of HarmonyOS. The CVSS score is 3.7, indicating a low severity level. There is no evidence of known exploits in the wild, and no patch or remediation information is provided.

Impact

The impact is limited to potential confidentiality issues affecting services due to improper permission controls in the Optimizer module. The CVSS vector indicates no impact on confidentiality, integrity, but a low impact on availability, suggesting limited disruption. There are no known exploits in the wild, and the vulnerability does not require privileges or user interaction to be exploited.

Summary

This vulnerability, identified as CVE-2026-101177, involves improper permissions, privileges, or access controls (CWE-264) within the Optimizer module of Huawei HarmonyOS. Successful exploitation could compromise the confidentiality of services running on the affected versions. The CVSS 3.1 base score is 3.7, reflecting low severity with network attack vector, high attack complexity, no privileges required, no user interaction, and only availability impact. The affected versions explicitly include HarmonyOS 4.3.3, 4.3.1, 4.3.0, 4.2.0, 4.0.0, 16.0.0, 15.0.0, 14.2.0, and 14.0.0.

CWE-264Permissions, Privileges, and Access Controls (opens in a new tab)
CategoryOWASP Top 10 A01:2021: Broken Access Control (opens in a new tab)
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.
MITRE does not allow mapping vulnerabilities to this entry; it groups weaknesses rather than naming one.

References

consumer.huawei.com/en/support/bulletin/2026/10/ (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 2 Nov 2026, 07:15 UTC

WeaknessesCWE-264

Technical details

References

Community reviews

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