VulnerabilityModified
CVE-2020-25014
A stack-based buffer overflow in fbwifi_continue.cgi on Zyxel UTM and VPN series of gateways running firmware version V4.30 through to V4.55 allows remote unauthenticated attackers to execute arbitrary code via a crafted http packet.
CRITICAL 9.8EPSS 4.44%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A stack-based buffer overflow in fbwifi_continue.cgi on Zyxel UTM and VPN series of gateways running firmware version V4.30 through to V4.55 allows remote unauthenticated attackers to execute arbitrary code via a crafted http packet.
- 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
- 4.44% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- zyxel/zld · zyxel/access points firmware
- Source
- cve@mitre.org
References
- https://businessforum.zyxel.com/categories/security-news-and-releaseRelease Notes, Vendor Advisory
- https://www.zyxel.com/support/Zyxel-security-advisory-for-buffer-overflow-vulnerability.shtmlVendor Advisory
- https://businessforum.zyxel.com/categories/security-news-and-releaseRelease Notes, Vendor Advisory
- https://www.zyxel.com/support/Zyxel-security-advisory-for-buffer-overflow-vulnerability.shtmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.