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CVE-2024-21780

22
FAUCET Score

CVE-2024-21780 is a stack-based buffer overflow vulnerability affecting KDDI HOME SPOT CUBE2 V102 and earlier, which are unsupported products. An unauthenticated attacker can trigger a denial of service (DoS) by sending a specially crafted command over the network. Rated 7.5 HIGH, this vulnerability has no known active exploits, public exploit code, or significant community discussion, and is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
v102CPE matchmatch criteria
cpe:2.3:o:kddi:home_spot_cube_2_firmware:v102:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 24th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/vu/JVNVU93740658
Third Party Advisory
au.com / support/service/mobile/guide/wlan/home_spot_cube_2
Vendor Advisory