Mercury KM08-708H GiGA WiFi Wave2 HTTP Header stack-based overflow

published 2025-09-14 13 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-29113

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

A vulnerability was detected in Mercury KM08-708H GiGA WiFi Wave2 1.1.14. This affects an unknown function of the component HTTP Header Handler. The manipulation of the argument Host results in stack-based buffer overflow. The attack can be executed remotely. The exploit is now public and may be used.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 13 mo ago (2025-09-15)

Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/mohdkey/IOT-CVE/blob/main/KT_GIGA_WIFI-Wave%202%20has%20a%20stack%20overflow%20vulnerability.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	9.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R
CNA	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R
CNA	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:W/RC:UR
CNA	4.0	8.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

Mercury KM08-708H GiGA WiFi Wave2

Classification

Weakness

CWE-121 Stack-based Buffer Overflow
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

github.com /mohdkey/IOT-CVE/blob/main/KT_GIGA_WIFI-Wave%202%20has%20a%20stack%20overflow%20vulnerability.pdf
broken-link, exploit
vuldb.com /?id.323827
vdb-entry, technical-description
vuldb.com /?ctiid.323827
signature, permissions-required
vuldb.com /?submit.644596
third-party-advisory

Sources

CVE List CVE-2025-10392
NVD CVE-2025-10392

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary