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Fencer Intel
medium 6.8

CVE-2024-8881 json

A post-authentication command injection vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80(AAHN.1)C0 and…

published 2y ago modified 4mo ago also EUVD-2024-49453

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

A post-authentication command injection vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80(AAHN.1)C0 and earlier could allow an authenticated, LAN-based attacker with administrator privileges to execute some operating system (OS) commands on an affected device by sending a crafted HTTP request.

Patch / fix

  • zyxel gs1900-8_firmware 2.90\(aahh.0\)c0
  • zyxel gs1900-8hp_firmware 2.90\(aahi.0\)c0
  • zyxel gs1900-10hp_firmware 2.90\(aazi.0\)c0
  • zyxel gs1900-16_firmware 2.90\(aahj.0\)c0
  • zyxel gs1900-24_firmware 2.90\(aahl.0\)c0
  • zyxel gs1900-24e_firmware 2.90\(aahk.0\)c0
  • zyxel gs1900-24ep_firmware 2.90\(abto.0\)c0
  • zyxel gs1900-24hpv2_firmware 2.90\(abtp.0\)c0
  • zyxel gs1900-48_firmware 2.90\(aahn.0\)c0
  • zyxel gs1900-48hpv2_firmware 2.90\(abtq.0\)c0

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 6.8 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Zyxel GS1900-48 firmware
  • zyxel gs1900-48_firmware

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.