9.8

CVE-2023-20126: cisco cisco small business ip phones

CVSS: 9.8v3.1CriticalModified
Published 04-05-2023Last modified 28-10-2024
Open JSON

Vulnerability summary

CVE-2023-20126 is a critical (CVSS 9.8) vulnerability in cisco cisco small business ip phones. EPSS estimates a 36.68% chance of exploitation in the next 30 days, higher than 98.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
36.68%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-05-2023
    PublishedVulnerability first disclosed.
  2. 28-10-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

36.68%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 36.68% on 20-09-2026

20-09-202620-10-2026
EPSS score
36.68%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products

1 vendor · 2 products

References

1 links