Out-of-bounds write in DD-WRT
Priority HIGH 81CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01186 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-27631
- 2026-10-03 Alias added: GHSA-hhx7-c9wv-4ggc
References
More Dd-wrt vulnerabilities
- TI-2021-08684 Stack-based buffer overflow in DD-WRT KEVCVSS 3.1HIGH 8.1
- TI-2009-02631 httpd.c in httpd in the management GUI in DD-WRT 24 sp1, and other versions before build… CVSS 2.0HIGH 8.3
- TI-2020-10949 An issue was discovered in DD-WRT through 16214. CVSS 3.1HIGH 8.8
- TI-2012-05124 Command Injection vulnerability exists via a CSRF in DD-WRT 24-sp2 from specially crafted… CVSS 3.1HIGH 8.8
- TI-2009-02632 httpd.c in httpd in the management GUI in DD-WRT 24 sp1 does not require administrative… CVSS 2.0HIGH 7.5
- TI-2008-06663 Multiple cross-site request forgery (CSRF) vulnerabilities in apply.cgi in DD-WRT 24 sp2… CVSS 2.0MEDIUM 6.8
Sources
- CVE-2022-27631 · CVE Program
- CVE-2022-27631 · NVD
- FIRST EPSS
- GHSA-hhx7-c9wv-4ggc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences