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Fencer Vulns
medium 5.5

CVE-2023-5797 json

An improper privilege management vulnerability in the debug CLI command of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FL…

published 2023-11-28 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-58080

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits
0
none known

Summary

An improper privilege management vulnerability in the debug CLI command of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, VPN series firmware versions 4.30 through 5.37, NWA50AX firmware version 6.29(ABYW.2), WAC500 firmware version 6.65(ABVS.1), WAX300H firmware version 6.60(ACHF.1), and WBE660S firmware version 6.65(ACGG.1), could allow an authenticated local attacker to access the administrator’s logs on an affected device.

Patch / fix

  • zyxel nwa110ax_firmware 6.70\(abtg.0\)
  • zyxel nwa1123acv3_firmware 6.70\(abvt.0\)
  • zyxel nwa210ax_firmware 6.70\(abtd.0\)
  • zyxel nwa220ax-6e_firmware 6.70\(acco.0\)
  • zyxel nwa50ax_firmware 6.80\(abyw.0\)
  • zyxel nwa50ax-pro_firmware 6.80\(acge.0\)
  • zyxel nwa55axe_firmware 6.80\(abzl.0\)
  • zyxel nwa90ax_firmware 6.80\(accv.0\)
  • zyxel nwa90ax-pro_firmware 6.80\(acgf.0\)
  • zyxel wac500_firmware 6.70\(abvs.0\)
  • zyxel wac500h_firmware 6.70\(abwa.0\)
  • zyxel wax510d_firmware 6.70\(abtf.0\)
  • zyxel wax610d_firmware 6.70\(abte.0\)
  • zyxel wax620d-6e_firmware 6.70\(accn.0\)
  • zyxel wax630s_firmware 6.70\(abzd.0\)
  • zyxel wax640s-6e_firmware 6.70\(accm.0\)
  • zyxel wax650s_firmware 6.70\(abrm.0\)
  • zyxel wax655e_firmware 6.70\(acdo.0\)
  • zyxel wbe660s_firmware 6.70\(acgg.0\)

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Zyxel ATP series firmware
  • Zyxel USG FLEX series firmware
  • Zyxel USG FLEX 50(W) series firmware
  • Zyxel USG20(W)-VPN series firmware
  • Zyxel VPN series firmware
  • Zyxel NWA50AX firmware
  • Zyxel WAC500 firmware
  • Zyxel WAX300H firmware
  • Zyxel WBE660S firmware

Classification

Weakness
  • CWE-269 Improper Privilege Management

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.