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CVE Vulnerability Details :
CVE-2026-1637
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-29 Jan, 2026 | 22:32
Updated At-23 Feb, 2026 | 09:07
Rejected At-
▼CVE Numbering Authority (CNA)
Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow

A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Affected Products
Vendor
Tenda Technology Co., Ltd.Tenda
Product
AC21
CPEs
  • cpe:2.3:o:tenda:ac21_firmware:*:*:*:*:*:*:*:*
Versions
Affected
  • 16.03.08.16
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
4.08.7HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
3.08.8HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
2.09.0N/A
AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Version: 4.0
Base score: 8.7
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Version: 3.0
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Version: 2.0
Base score: 9.0
Base severity: N/A
Vector:
AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
LX-LX (VulDB User)
Timeline
EventDate
Advisory disclosed2026-01-29 00:00:00
VulDB entry created2026-01-29 01:00:00
VulDB entry last update2026-02-04 03:53:45
Event: Advisory disclosed
Date: 2026-01-29 00:00:00
Event: VulDB entry created
Date: 2026-01-29 01:00:00
Event: VulDB entry last update
Date: 2026-02-04 03:53:45
Replaced By
Rejected Reason
References
HyperlinkResource
https://vuldb.com/?id.343416
vdb-entry
technical-description
https://vuldb.com/?ctiid.343416
signature
permissions-required
https://vuldb.com/?submit.740865
third-party-advisory
https://github.com/LX-LX88/cve/issues/25
broken-link
exploit
issue-tracking
https://www.tenda.com.cn/
product
Hyperlink: https://vuldb.com/?id.343416
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/?ctiid.343416
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/?submit.740865
Resource:
third-party-advisory
Hyperlink: https://github.com/LX-LX88/cve/issues/25
Resource:
broken-link
exploit
issue-tracking
Hyperlink: https://www.tenda.com.cn/
Resource:
product
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/LX-LX88/cve/issues/25
exploit
Hyperlink: https://github.com/LX-LX88/cve/issues/25
Resource:
exploit
Details not found