VulnerabilityModified

CVE-2022-27631

A memory corruption vulnerability exists in the httpd unescape functionality of DD-WRT Revision 32270 - Revision 48599.

CRITICAL 9.8EPSS 1.13%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A memory corruption vulnerability exists in the httpd unescape functionality of DD-WRT Revision 32270 - Revision 48599. A specially-crafted HTTP request can lead to memory corruption. An attacker can send a network request to trigger this vulnerability.

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: 1.13% probability · 65th percentile
CISA KEV: Not listed
Weakness: CWE-787
Affected: dd-wrt/dd-wrt
Source: talos-cna@cisco.com

References

https://talosintelligence.com/vulnerability_reports/TALOS-2022-1510Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2022-1510Exploit, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.