Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
10 results
Sep 16, 2026DD-WRT firmware, as deployed on TP-Link TL-WR740N v1 through v4 hardware, stores sensitive authentication credentials in cleartext within non-volatile memory.CVE-2025-56565 · Other software · reported by MITREHigh 7.6
DD-WRT firmware, as deployed on TP-Link TL-WR740N v1 through v4 hardware, stores sensitive authentication credentials in cleartext within non-volatile memory. The exposed material includes SSH private keys, dynamic DNS passwords, email notification credentials and administrative passwords. An attacker with physical access to the device can extract these credentials from an SPI flash dump, leading to device compromise, infiltration of the connected network and unauthorised access to dependent third-party services.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comwiki.dd-wrt.com
Jul 16, 2026DD-WRT Stack-Based Buffer Overflow VulnerabilityCVE-2021-27137 · Other software · DD-WRT · reported by MITREExploitedHigh 8.1
DD-WRT contains a stack-based buffer overflow vulnerability that could allow an unauthenticated attacker to overflow an internal buffer used by UPnP and trigger a code execution vulnerability.
- Product
- DD-WRT
- On CISA’s list since
- Jul 21, 2026 (federal fix deadline Jul 24, 2026)
- What to do
- Attackers are using this now. Install DD-WRT’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogsecurityaffairs.comssd-disclosure.com
Jan 21, 2026DD-WRT version 45723 contains a buffer overflow vulnerability in the UPNP network discovery service that allows remote attackers to potentially execute arbitrarCVE-2021-47854 · Other software · embeDD GmbH · reported by VulnCheckHigh 8.7
DD-WRT version 45723 contains a buffer overflow vulnerability in the UPNP network discovery service that allows remote attackers to potentially execute arbitrary code. Attackers can send crafted M-SEARCH packets with oversized UUID payloads to trigger buffer overflow conditions on the target device.
- Product
- DD-WRT
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddd-wrt.comdownload1.dd-wrt.com
Aug 5, 2022A memory corruption vulnerability exists in the httpd unescape functionality of DD-WRT Revision 32270 - Revision 48599.CVE-2022-27631 · Other software · DD-WRT · reported by talos-cna@cisco.comCritical 9.8
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.
- Product
- DD-WRT
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordtalosintelligence.comtalosintelligence.com
Jun 9, 2020An issue was discovered in DD-WRT through 16214.CVE-2020-13976 · Other software · Dd-wrt · reported by MITREHigh 8.8
An issue was discovered in DD-WRT through 16214. The Diagnostic page allows remote attackers to execute arbitrary commands via shell metacharacters in the host field of the ping command. Exploitation through CSRF might be possible. NOTE: software maintainers consider the report invalid because it refers to an old software version, requires administrative privileges, and does not provide access beyond that already available to administrative users
- Product
- Dd-wrt
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsvn.dd-wrt.comsvn.dd-wrt.com
Feb 6, 2020Command Injection vulnerability exists via a CSRF in DD-WRT 24-sp2 from specially crafted configuration values containing shell meta-characters, which could letCVE-2012-6297 · Other software · Dd-wrt · reported by MITREHigh 8.8
Command Injection vulnerability exists via a CSRF in DD-WRT 24-sp2 from specially crafted configuration values containing shell meta-characters, which could let a remote malicious user cause a Denial of Service.
- Product
- Dd-wrt
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.openwall.netpacketstormsecurity.com
Aug 14, 2009httpd.c in httpd in the management GUI in DD-WRT 24 sp1 does not require administrative authentication for programs under cgi-bin/, which allows remote attackerCVE-2009-2766 · Other software · Dd-wrt · reported by MITREHigh 7.5
httpd.c in httpd in the management GUI in DD-WRT 24 sp1 does not require administrative authentication for programs under cgi-bin/, which allows remote attackers to change settings via HTTP requests.
- Product
- Dd-wrt
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddd-wrt.comexploit-db.com
Aug 14, 2009httpd.c in httpd in the management GUI in DD-WRT 24 sp1, and other versions before build 12533, allows remote attackers to execute arbitrary commands via shell CVE-2009-2765 · Other software · Dd-wrt · reported by MITREHigh 8.3
httpd.c in httpd in the management GUI in DD-WRT 24 sp1, and other versions before build 12533, allows remote attackers to execute arbitrary commands via shell metacharacters in a request to a cgi-bin/ URI.
- Product
- Dd-wrt
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordisc.sans.orgmetasploit.com
Aug 14, 2009Multiple cross-site request forgery (CSRF) vulnerabilities in apply.cgi in DD-WRT 24 sp2 allow remote attackers to hijack the authentication of administrators fCVE-2008-6975 · Other software · Dd-wrt · reported by MITREMedium 6.8
Multiple cross-site request forgery (CSRF) vulnerabilities in apply.cgi in DD-WRT 24 sp2 allow remote attackers to hijack the authentication of administrators for requests that (1) execute arbitrary commands via the ping_ip parameter; (2) change the administrative credentials via the http_username and http_passwd parameters; (3) enable remote administration via the remote_management parameter; or (4) configure port forwarding via certain from, to, ip, and pro parameters. NOTE: This issue reportedly exists because of a "weak ... anti-CSRF fix" implemented in 24 sp2.
- Product
- Dd-wrt
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddd-wrt.comsecurityfocus.com
Aug 14, 2009Multiple cross-site request forgery (CSRF) vulnerabilities in apply.cgi in DD-WRT 24 sp1 and earlier allow remote attackers to hijack the authentication of admiCVE-2008-6974 · Other software · Dd-wrt · reported by MITREMedium 6.8
Multiple cross-site request forgery (CSRF) vulnerabilities in apply.cgi in DD-WRT 24 sp1 and earlier allow remote attackers to hijack the authentication of administrators for requests that (1) execute arbitrary commands via the ping_ip parameter; (2) change the administrative credentials via the http_username and http_passwd parameters; (3) enable remote administration via the remote_management parameter; or (4) configure port forwarding via certain from, to, ip, and pro parameters.
- Product
- Dd-wrt
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddd-wrt.comsecurityfocus.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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