CVE-2021-26637 is a critical authentication bypass vulnerability affecting SiHAS SGW-300, ACM-300, and GCM-300 devices, allowing unauthorized remote control due to missing authentication and permission checks. With a CVSS score of 9.8, this network-exploitable flaw requires no user interaction and can lead to complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:shinasys:sihas_sgw-300_firmware:-:*:*:*:*:android:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:shinasys:sihas_sgw-300_firmware:-:*:*:*:*:iphone_os:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:shinasys:sihas_acm-300_firmware:-:*:*:*:*:android:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:shinasys:sihas_acm-300_firmware:-:*:*:*:*:iphone_os:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:shinasys:sihas_gcm-300_firmware:-:*:*:*:*:android:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.