CVE-2024-8882

MEDIUM

4.5

CVSS Score

Published: November 12, 2024 at 01:23 AM UTC

Updated: June 17, 2026 at 08:23 AM UTC

20 products affected across 1 vendorGS1900-10HP firmwareGS1900-24 firmwareGS1900-8 Firmware

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Severity

MEDIUM4.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

A buffer overflow 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 cause denial of service (DoS) conditions via a crafted URL.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GS1900-10HP firmware · Zyxel

95%

v < 2.90(aazi.0)c0

Affected range stops below 2.90(aazi.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-10hp (same device)

GS1900-16 firmware · Zyxel

95%

v < 2.90(aahj.0)c0

Affected range stops below 2.90(aahj.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-16 (same device)

GS1900-24 firmware · Zyxel

95%

v < 2.90(aahl.0)c0

Affected range stops below 2.90(aahl.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-24 (same device)

GS1900-24E firmware · Zyxel

95%

v < 2.90(aahk.0)c0

Affected range stops below 2.90(aahk.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-24e (same device)

GS1900-24EP firmware · Zyxel

95%

v < 2.90(abto.0)c0

Affected range stops below 2.90(abto.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-24ep (same device)

GS1900-24HPv2 firmware · Zyxel

95%

v < 2.90(abtp.0)c0

Affected range stops below 2.90(abtp.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-24hpv2 (same device)

GS1900-48 firmware · Zyxel

95%

v < 2.90(aahn.0)c0<= V2.80(AAHN.1)C0

Affected range stops below 2.90(aahn.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-48 (same device)

GS1900-48HPv2 firmware · Zyxel

95%

v < 2.90(abtq.0)c0

Affected range stops below 2.90(abtq.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-48hpv2 (same device)

GS1900-8 Firmware · Zyxel

95%

v < 2.90(aahh.0)c0

Affected range stops below 2.90(aahh.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-8 (same device)

GS1900-8HP firmware · Zyxel

95%

v < 2.90(aahi.0)c0

Affected range stops below 2.90(aahi.0)c0, so it looks safe — our inference, not a vendor statement

zyxel-gs1900-8hp (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-command-injection-and-buffer-overflow-vulnerabilities-in-gs1900-series-switches-11-12-2024

References (1)

Vendor Advisory

Source: [email protected]

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-command-injection-and-buffer-overflow-vulnerabilities-in-gs1900-series-switches-11-12-2024

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.5MEDIUMZyxel

Attack Vector: ADJACENT_NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-120

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