Patchfirst
CVE-2026-28763 Critical · 9.1 EPSS 0.7%

A stack-based buffer overflow vulnerability exists in the boa formMapDelDevice hostname functionality of X2000R…

totolink · Totolink

Summary

A stack-based buffer overflow in the boa web server's formMapDelDevice hostname handling in the Totolink X2000R router firmware allows a specially crafted HTTP request to overflow the stack. An attacker needs to be able to send an authenticated HTTP request to the device, and successful exploitation can lead to arbitrary code execution.

Official description · NVD

A stack-based buffer overflow vulnerability exists in the boa formMapDelDevice hostname 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.

Breakdown
19.2 / 100
Exploited
Not confirmed
Reports
0
Tactics
0/15

Disclosed on 20 Oct 2026. No public exploit code or confirmed exploitation is recorded.

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

Also mentioned in 6 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

1 link, grouped by NVD tag
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