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Vulnerability Details :

CVE-2026-2565

Summary
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
Published At-16 Feb, 2026 | 16:32
Updated At-16 Feb, 2026 | 16:32
Rejected At-
Credits

Wavlink WL-NU516U1 adm.cgi sub_40785C stack-based overflow

A weakness has been identified in Wavlink WL-NU516U1 20251208. Affected by this issue is the function sub_40785C of the file /cgi-bin/adm.cgi. This manipulation of the argument time_zone causes stack-based buffer overflow. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulDB
Assigner Org ID:1af790b2-7ee1-4545-860a-a788eba489b5
Published At:16 Feb, 2026 | 16:32
Updated At:16 Feb, 2026 | 16:32
Rejected At:
â–¼CVE Numbering Authority (CNA)
Wavlink WL-NU516U1 adm.cgi sub_40785C stack-based overflow

A weakness has been identified in Wavlink WL-NU516U1 20251208. Affected by this issue is the function sub_40785C of the file /cgi-bin/adm.cgi. This manipulation of the argument time_zone causes stack-based buffer overflow. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected Products
Vendor
WAVLINK Technology Ltd.Wavlink
Product
WL-NU516U1
Versions
Affected
  • 20251208
Problem Types
TypeCWE IDDescription
CWECWE-121Stack-based Buffer Overflow
CWECWE-119Memory Corruption
Type: CWE
CWE ID: CWE-121
Description: Stack-based Buffer Overflow
Type: CWE
CWE ID: CWE-119
Description: Memory Corruption
Metrics
VersionBase scoreBase severityVector
4.07.5HIGH
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
3.16.6MEDIUM
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
3.06.6MEDIUM
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
2.06.8N/A
AV:N/AC:H/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Version: 4.0
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 6.6
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Version: 3.0
Base score: 6.6
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Version: 2.0
Base score: 6.8
Base severity: N/A
Vector:
AV:N/AC:H/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

reporter
haimianbaobao (VulDB User)
Timeline
EventDate
Advisory disclosed2026-02-15 00:00:00
VulDB entry created2026-02-15 01:00:00
VulDB entry last update2026-02-15 20:45:15
Event: Advisory disclosed
Date: 2026-02-15 00:00:00
Event: VulDB entry created
Date: 2026-02-15 01:00:00
Event: VulDB entry last update
Date: 2026-02-15 20:45:15
Replaced By

Rejected Reason

References
HyperlinkResource
https://vuldb.com/?id.346172
vdb-entry
technical-description
https://vuldb.com/?ctiid.346172
signature
permissions-required
https://vuldb.com/?submit.751133
third-party-advisory
https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/time_zone.md
exploit
Hyperlink: https://vuldb.com/?id.346172
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/?ctiid.346172
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/?submit.751133
Resource:
third-party-advisory
Hyperlink: https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/time_zone.md
Resource:
exploit
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cna@vuldb.com
Published At:16 Feb, 2026 | 17:18
Updated At:16 Feb, 2026 | 17:18

A weakness has been identified in Wavlink WL-NU516U1 20251208. Affected by this issue is the function sub_40785C of the file /cgi-bin/adm.cgi. This manipulation of the argument time_zone causes stack-based buffer overflow. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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
Secondary4.06.6MEDIUM
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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
Primary3.16.6MEDIUM
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Secondary2.06.8MEDIUM
AV:N/AC:H/Au:M/C:C/I:C/A:C
Type: Secondary
Version: 4.0
Base score: 6.6
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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: Primary
Version: 3.1
Base score: 6.6
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 2.0
Base score: 6.8
Base severity: MEDIUM
Vector:
AV:N/AC:H/Au:M/C:C/I:C/A:C
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-119Primarycna@vuldb.com
CWE-121Primarycna@vuldb.com
CWE ID: CWE-119
Type: Primary
Source: cna@vuldb.com
CWE ID: CWE-121
Type: Primary
Source: cna@vuldb.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/time_zone.mdcna@vuldb.com
N/A
https://vuldb.com/?ctiid.346172cna@vuldb.com
N/A
https://vuldb.com/?id.346172cna@vuldb.com
N/A
https://vuldb.com/?submit.751133cna@vuldb.com
N/A
Hyperlink: https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/time_zone.md
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/?ctiid.346172
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/?id.346172
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/?submit.751133
Source: cna@vuldb.com
Resource: N/A

Change History

0
Information is not available yet

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Product-sitemanager_1139_firmwaresitemanager_1129sitemanager_3539sitemanager_3339_firmwaresitemanager_1139sitemanager_3529sitemanager_1149sitemanager_3329sitemanager_3329_firmwaresitemanager_3549_firmwaresitemanager_3349sitemanager_3539_firmwaresitemanager_3349_firmwaresitemanager_1149_firmwaresitemanager_1129_firmwaresitemanager_3339sitemanager_3549sitemanager_3529_firmwareSiteManager
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Details not found