8.8

CVE-2023-22919: zyxel nbg6604_firmware OS Command Injection

CVSS: 8.8v3.1HighModified
Published 01-05-2023Last modified 30-01-2025

Vulnerability summary

CVE-2023-22919 is a high (CVSS 8.8) OS Command Injection vulnerability in zyxel nbg6604_firmware. EPSS estimates a 1.59% chance of exploitation in the next 30 days, higher than 75.2% of scored vulnerabilities.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.59%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 01-05-2023
    PublishedVulnerability first disclosed.
  2. 30-01-2025
    Last modifiedVulnerability information updated.

Description

The post-authentication command injection vulnerability in the Zyxel NBG6604 firmware version V1.01(ABIR.0)C0 could allow an authenticated attacker to execute some OS commands remotely by sending a crafted HTTP request.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.59%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

0.00 pp

From 1.59% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.59%

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

Zyxel2 products

1 vendor · 2 products

References

1 links