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CVE-2026-9869

CRITICALCVSS 9.1/10EPSS 0.79%

Last modified

CVE-2026-9869 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. A stack-based buffer overflow vulnerability exists in the boa formTR069Config functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

A stack-based buffer overflow vulnerability exists in the boa formTR069Config functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Metrics

CVSS 3.1
9.1/10

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

EPSS Probability
0.79%

55.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
totolinkTotolinkTOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-9869?
A stack-based buffer overflow vulnerability exists in the boa formTR069Config functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
How severe is CVE-2026-9869?
CVE-2026-9869 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.
How do I fix CVE-2026-9869?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST