CVE-1999-0791 describes a critical vulnerability in Hybrid Network cable modems and their HSMP protocol, which lacks an authentication mechanism for administrative functions. This allows remote, unauthenticated attackers to fully compromise affected systems, leading to complete loss of confidentiality, integrity, and availability. With a CVSS score of 10.0, this vulnerability is considered highly severe and easily exploitable over the network with low attack complexity. While not listed in CISA's KEV catalog, an exploit for remote configuration manipulation is available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:hybrid_network:hsmp:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:h:hybrid_network:cable_modem:*:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
No social media mentions found for this CVE.
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.
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 records are not available for this CVE.