CVE-2021-35032
HIGH
7.8
CVSS Score
Published: December 28, 2021 at 10:42 AM UTC
Updated: June 17, 2026 at 03:57 AM UTC
25 products affected across 1 vendorGS1900-10HP firmwareGS1900-24 firmwareGS1900-8 Firmware
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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2.70(aazi.0)-20211208
Affected range stops below 2.70(aazi.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-10hp (same device)
v < 2.70(aahj.0)-20211208
Affected range stops below 2.70(aahj.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-16 (same device)
v < 2.70(aahl.0)-20211208
Affected range stops below 2.70(aahl.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-24 (same device)
v < 2.70(aahk.0)-20211208
Affected range stops below 2.70(aahk.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-24e (same device)
v < 2.70(abto.0)-20211208
Affected range stops below 2.70(abto.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-24ep (same device)
v < 2.70(aahm.0)-20211208
Affected range stops below 2.70(aahm.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-24hp (same device)
v < 2.70(aatp.0)-20211208
Affected range stops below 2.70(aatp.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-24hpv2 (same device)
v < 2.70(aahn.0)-20211208
Affected range stops below 2.70(aahn.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-48 (same device)
v < 2.70(aaho.0)-20211208
Affected range stops below 2.70(aaho.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-48hp (same device)
v < 2.70(abtq.0)-20211208
Affected range stops below 2.70(abtq.0)-20211208, so it looks safe — our inference, not a vendor statement
zyxel-gs1900-48hpv2 (same device)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
https://www.zyxel.com/support/Zyxel_security_advisory_for_OS_command_injection_vulnerabilities_of_switches.shtmlCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-78
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