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Vulnerabilities

Vulnerability · CVE-2026-2876

A vulnerability was determined in Tenda A18 15.13.07.13.

Published Feb 21, 2026 · catalog updated Jun 17, 2026 · a18 firmware

Check if you run it

No confirmed exploitation is on record for CVE-2026-2876. EPSS is 0.98%. Act only if a listed version of a18 firmware is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.98%
Remediation
Advisory link
Affected products
cpe tenda/a18 firmware

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe tenda/a18 firmware15.13.07.13

How to fix CVE-2026-2876

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-2876. EPSS is 0.98%. Act only if a listed version of a18 firmware is installed.

Which versions are affected?

Compare what you have installed with tenda/a18 firmware 15.13.07.13. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-119: Buffer Overflow; CWE-121: Stack-based Buffer Overflow. EPSS 0.98%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 21, 2026 · NIST NVD

    Detected

    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.

  2. Jun 17, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-2876

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-2876

    30-day exploitation probability 1.0%

    first.org
  • NIST NVDVulnerability recordCVE-2026-2876

    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 pu

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.