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Fencer Vulns
medium 4.9

CVE-2024-9197 json

A post-authentication buffer overflow vulnerability in the parameter "action" of the CGI program in Zyxel VMG3625-T50B firmware versions th…

published 2024-12-03 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-50360

cvss
4.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

A post-authentication buffer overflow vulnerability in the parameter "action" of the CGI program in Zyxel VMG3625-T50B firmware versions through V5.50(ABPM.9.2)C0 could allow an authenticated attacker with administrator privileges to cause a temporary denial of service (DoS) condition against the web management interface by sending a crafted HTTP GET request to a vulnerable device if the function ZyEE is enabled.

Patch / fix

  • zyxel dx3300-t0_firmware 5.50\(aby.5.4\)c0
  • zyxel dx3300-t1_firmware 5.50\(aby.5.4\)c0
  • zyxel dx3301-t0_firmware 5.50\(aby.5.4\)c0
  • zyxel dx4510-b0_firmware 5.17\(abyl.8\)c0
  • zyxel dx4510-b1_firmware 5.17\(abyl.8\)c0
  • zyxel dx5401-b0_firmware 5.17\(abyo.6.4\)c0
  • zyxel dx5401-b1_firmware 5.17\(abyo.6.4\)c0
  • zyxel ee6510-10_firmware 5.19\(acjq.1\)c0
  • zyxel ex3300-t0_firmware 5.50\(aby.5.4\)c0
  • zyxel ex3300-t1_firmware 5.50\(aby.5.4\)c0
  • zyxel ex3301-t0_firmware 5.50\(aby.5.4\)c0
  • zyxel ex3500-t0_firmware 5.44\(achr.3\)c0
  • zyxel ex3501-t0_firmware 5.44\(achr.3\)c0
  • zyxel ex3510-b0_firmware 5.17\(abup.13\)c0
  • zyxel ex3510-b1_firmware 5.17\(abup.13\)c0
  • zyxel ex5401-b0_firmware 5.17\(abyo.6.4\)c0
  • zyxel ex5401-b1_firmware 5.17\(abyo.6.4\)c0
  • zyxel ex5501-b0_firmware 5.17\(abry.5.3\)c0
  • zyxel ex5510-b0_firmware 5.17\(abqx.11\)c0
  • zyxel ex5600-t1_firmware 5.70\(acdz.3.4\)c0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Zyxel VMG3625-T50B firmware

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns 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.