SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-7261

The improper neutralization of special elements in the parameter "host" in the CGI program of Zyxel NWA1123ACv3 firmware version 6.70(ABVT.4) and earlier, WAC500 firmware version 6.70(ABVS.4) and earlier, WAX655E firmware version 7.00(ACDO.1) and…

CRITICAL 9.8EPSS 11.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 11.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

The improper neutralization of special elements in the parameter "host" in the CGI program of Zyxel NWA1123ACv3 firmware version 6.70(ABVT.4) and earlier, WAC500 firmware version 6.70(ABVS.4) and earlier, WAX655E firmware version 7.00(ACDO.1) and earlier, WBE530 firmware version 7.00(ACLE.1) and earlier, and USG LITE 60AX firmware version V2.00(ACIP.2) could allow an unauthenticated attacker to execute OS commands by sending a crafted cookie to a vulnerable device.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
11.41% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-78
Affected
zyxel/nwa110ax firmware · zyxel/nwa1123-ac pro firmware · zyxel/nwa1123acv3 firmware · zyxel/nwa130be firmware · zyxel/nwa210ax firmware · zyxel/nwa220ax-6e firmware · zyxel/nwa50ax firmware · zyxel/nwa50ax pro firmware · zyxel/nwa55axe firmware · zyxel/nwa90ax firmware · zyxel/nwa90ax pro firmware · zyxel/usg lite 60ax firmware · zyxel/wac500 firmware · zyxel/wac500h firmware · zyxel/wac6103d-i firmware · zyxel/wac6502d-s firmware · zyxel/wac6503d-s firmware · zyxel/wac6552d-s firmware · zyxel/wac6553d-e firmware · zyxel/wax300h firmware · +9 more
Source
security@zyxel.com.tw
EPSS trend
0%8%15%26 October 2026: 11.41%26 October 202626 October 2026

EPSS 11.4% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.