VulnerabilityPublished 7 Aug 2026

CVE-2026-49005: ZTE F689 · Weak Password Hashing

Affects ZTE F689Source CVE Database V5

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Not known to be exploited · CVSS 2.4 Low.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score

2.4Low

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

EPSS: 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

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

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

Attack Vector: Physical: The attack requires the attacker to physically touch or manipulate the vulnerable component. Physical interaction may be brief or persistent.
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
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: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 7 Aug 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 5 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.

ghsa-3vhw-pg83-cf2w

What to do

Affected software

Product	Affected	Fixed in
ZTEF689	Affected =ZXHN F680V9.0.10P6N1,ZXHN F680V9.0.10P4N4,ZXHN F680V9.0.10P4N5,ZXHN F680V9.0.10P4N9,ZXHN F680V9.0.10P4N10,ZXHN F680V9.0.10P1N12,ZXHN F680V9.0.10P1N13	Fixed in–

AI-suggested

Until a fix is available, limit physical and firmware access to trusted personnel and devices to reduce risk.

Description

CVE-2026-49005 is a low-severity vulnerability in the ZTE F689 device where the root password hash can be extracted from unencrypted firmware data. The weakness involves the use of a password hash with insufficient computational effort, classified under CWE-916. This vulnerability does not have a known exploit in the wild and no official patch or remediation guidance has been provided by the vendor. The impact is limited to potential exposure of the root password hash, which could aid an attacker with physical or firmware access. No affected software versions are explicitly stated.

Impact

The exposure of the root password hash in unencrypted firmware could allow an attacker with access to the firmware to attempt offline password cracking. However, the low CVSS score and lack of known exploits indicate limited practical impact. Confidentiality is partially affected, while integrity and availability are not impacted.

Summary

This vulnerability (CVE-2026-49005) affects the ZTE F689 device and involves the exposure of the root password hash through unencrypted information present in the device firmware. The password hash uses insufficient computational effort, making it easier to potentially crack. The CVSS v3.1 base score is 2.4, reflecting low impact, with an attack vector requiring physical access (AV:P), low attack complexity, no privileges or user interaction needed, and limited confidentiality impact. There is no vendor advisory or patch available at this time.

CWE-916Use of Password Hash With Insufficient Computational Effort (opens in a new tab)
Base weaknessOWASP Top 10 A04:2025: Cryptographic Failures (opens in a new tab)
The product generates a hash for a password, but it uses a scheme that does not provide a sufficient level of computational effort that would make password cracking attacks infeasible or expensive.
Architecture and Design
Use an adaptive hash function that can be configured to change the amount of computational effort needed to compute the hash, such as the number of iterations ("stretching") or the amount of memory required. Some hash functions perform salting automatically.
Implementation · Architecture and Design
When using industry-approved techniques, use them correctly. Don't cut corners by skipping resource-intensive steps (CWE-325). These steps are often essential for preventing common attacks.
OWASP Cheat Sheets
Password Storage (opens in a new tab)
Transport Layer Protection (opens in a new tab)
User Privacy Protection (opens in a new tab)
Cryptographic Storage (opens in a new tab)
HSTS (opens in a new tab)
OWASP ASVS 4.0.3
V2.4.3 (opens in a new tab)
V2.4.4 (opens in a new tab)
V2.4.1 (opens in a new tab)
Attack patterns
Rainbow Table Password Cracking (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/7458768768701636680 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Aug 2026, 16:13 UTC

WeaknessesCWE-916

Technical details

References

Community reviews

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