CVE-2026-2876 - Tenda A18 setBlackRule parse_macfilter_rule stack-based overflow

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HIGH

Tenda A18 setBlackRule parse_macfilter_rule stack-based overflow

Published Feb 21, 2026

8.7

HIGH

CVSS 4.0

EPSS 0.96%

Description

A vulnerability was determined in Tenda A18 15.13.07.13. This affects the function parse_macfilter_rule of the file /goform/setBlackRule. This manipulation of the argument deviceList causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Affected products

Vendor Tenda Product n/a Default
n/a
- Version
  15.13.07.13
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Tenda

n/a

Version	Status	Constraints
15.13.07.13	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-119

Buffer Overflow

CWE-121

References (6)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7590
Advisory
https://github.com/master-abc/cve/issues/38
exploitissue-trackingIssue Tracking
https://vuldb.com/?ctiid.347114
signaturepermissions-requiredPermissions RequiredVDB Entry
https://vuldb.com/?id.347114
vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/?submit.754675
third-party-advisoryThird Party AdvisoryVDB Entry
https://www.tenda.com.cn/
product

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7590		Advisory
https://github.com/master-abc/cve/issues/38		exploitissue-trackingIssue Tracking
https://vuldb.com/?ctiid.347114		signaturepermissions-requiredPermissions RequiredVDB Entry
https://vuldb.com/?id.347114		vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/?submit.754675		third-party-advisoryThird Party AdvisoryVDB Entry
https://www.tenda.com.cn/		product