Home/CVE/A vulnerability in the 'libsal.so' of the Zyxel GS1900 series firmware version 2.60 could allow an authenticated local u
CVE

CVE-2021-35032

A vulnerability in the 'libsal.so' of the Zyxel GS1900 series firmware version 2.60 could allow an authenticated local u

A vulnerability in the 'libsal.so' of the Zyxel GS1900 series firmware version 2.60 could allow an authenticated local user to execute arbitrary OS commands via a crafted function call.

MEDIUM · CVSS 6.4 EPSS 0.00036
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
▤

Affected Products & Versions

12
zyxel gs1900-8 firmware< 2.70\(aahh.0\)-20211208
zyxel gs1900-8hp firmware< 2.70\(aahi.0\)-20211208
zyxel gs1900-10hp firmware< 2.70\(aazi.0\)-20211208
zyxel gs1900-16 firmware< 2.70\(aahj.0\)-20211208
zyxel gs1900-24e firmware< 2.70\(aahk.0\)-20211208
zyxel gs1900-24ep firmware< 2.70\(abto.0\)-20211208
zyxel gs1900-24 firmware< 2.70\(aahl.0\)-20211208
zyxel gs1900-24hp firmware< 2.70\(aahm.0\)-20211208
▣

Scoring & Timeline

6.4
MEDIUM · CVSS v3.1 · security@zyxel.com.tw
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Dec 2021 · 11:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.zyxel.com/support/Zyxel_security_advisory_for_OS_command_injection_vulnerabilities_of_switches.shtmlPatchVendor Advisory
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