CVE-2023-20126
9.8
CRITICAL · CVSS 3.1 · EPSS 36.7% (pctl 98)
Patch early
EPSS 36.7% — above the 10% action threshold.
Description
A vulnerability in the web-based management interface of Cisco SPA112 2-Port Phone Adapters could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to a missing authentication process within the firmware upgrade function. An attacker could exploit this vulnerability by upgrading an affected device to a crafted version of firmware. A successful exploit could allow the attacker to execute arbitrary code on the affected device with full privileges. Cisco has not released firmware updates to address this vulnerability.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 36.68% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-306 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2023-05-04 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| cisco | spa112 |
| cisco | spa112 firmware |
References
→ the Explorer · watch your stack · NVD