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
Oct 23, 2026Zephyr's OpenThread integration defined CONFIG_OPENTHREAD_JOINER_PSKD with default "J01NME" in modules/openthread/Kconfig.thread (previously subsys/net/l2/opentCVE-2026-19741 · Other software · zephyrproject · reported by vulnerabilities@zephyrproject.orgHigh 7.5
Zephyr's OpenThread integration defined CONFIG_OPENTHREAD_JOINER_PSKD with default "J01NME" in modules/openthread/Kconfig.thread (previously subsys/net/l2/openthread/Kconfig, then subsys/net/l2/openthread/Kconfig.thread). J01NME is the example Joining Device Credential used throughout the public OpenThread and Thread commissioning documentation, including Zephyr's own samples/net/sockets/echo_client/README.rst, so it is not a secret. A firmware image built with CONFIG_OPENTHREAD_JOINER_AUTOSTART=y that never overrode the PSKd therefore shipped with a publicly known joining credential compiled in, with no build-time or run-time warning. The PSKd is the only value that authenticates Thread commissioning: joiner and commissioner run a DTLS-PSK handshake keyed on it, after which the commissioner supplies the full operational dataset. In ot_configure_instance() (modules/openthread/openthread.c), a device with no stored dataset calls otJoinerStart() with the configured PSKd, and ot_joiner_start_handler() calls otThreadSetEnabled() on success. An unauthenticated attacker within 802.15.4 radio range of an uncommissioned device (factory-fresh, after a factory reset, or after a settings era
- Product
- zephyr
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 24, 2026Multiple vulnerabilities exist in OpenThread's handling of MLE packets.CVE-2025-36939 · Computers, phones & browsers · Google · reported by dsap-vuln-management@google.comCritical 10
Multiple vulnerabilities exist in OpenThread's handling of MLE packets. An authenticated attacker on the same Thread network could send specially crafted packets to cause a denial of service. These issues include triggerable assertion failures and a stack-based buffer overflow.
- Product
- Nest
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 13, 2026Improper Input Validation in the NAT64 translator in The OpenThread Authors OpenThread before commit 26a882d on all platforms allows an attacker on the adjacentCVE-2026-8369 · Other software · The OpenThread Authors · reported by cve-coordination@google.comMedium 6
Improper Input Validation in the NAT64 translator in The OpenThread Authors OpenThread before commit 26a882d on all platforms allows an attacker on the adjacent IPv4 network to inject corrupted IPv6 packets into the Thread mesh or bypass security checks via crafted IPv4 packets with options.
- Product
- OpenThread
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 25, 2025In high traffic environments, a Silicon Labs OpenThread RCP (see impacted versions) fails to clear the SPI transmit buffer and may send a corrupt packet over SPCVE-2025-2329 · Other software · silabs.com · reported by product-security@silabs.comMedium 5.3
In high traffic environments, a Silicon Labs OpenThread RCP (see impacted versions) fails to clear the SPI transmit buffer and may send a corrupt packet over SPI to its host, causing the host to reset the RCP which results in a denial of service.
- Product
- OpenThread
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcommunity.silabs.comgithub.com
Jun 27, 2024In a Silicon Labs multi-protocol gateway, a corrupt pointer to buffered data on a multi-protocol radio co-processor (RCP) causes the OpenThread Border RouterCVE-2024-3017 · Other software · silabs.com · reported by product-security@silabs.comMedium 6.5
In a Silicon Labs multi-protocol gateway, a corrupt pointer to buffered data on a multi-protocol radio co-processor (RCP) causes the OpenThread Border Router(OTBR) application task running on the host platform to crash, allowing an attacker to cause a temporary denial-of-service.
- Product
- SiSDK
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcommunity.silabs.comgithub.com
Oct 26, 2023Missing Encryption of Security Keys vulnerability in Silicon Labs OpenThread SDK on 32 bit, ARM (SecureVault High modules) allows potential modification or extrCVE-2023-41095 · Other software · silabs.com · reported by product-security@silabs.comMedium 6.8
Missing Encryption of Security Keys vulnerability in Silicon Labs OpenThread SDK on 32 bit, ARM (SecureVault High modules) allows potential modification or extraction of network credentials stored in flash. This issue affects Silicon Labs OpenThread SDK: 2.3.1 and earlier.
- Product
- OpenThread SDK
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsiliconlabs.lightning.force.comsiliconlabs.lightning.force.com
Jul 25, 2023There exists an authentication bypass vulnerability in OpenThread border router devices and implementations.CVE-2023-2626 · Computers, phones & browsers · Google · reported by cve-coordination@google.comHigh 7.5
There exists an authentication bypass vulnerability in OpenThread border router devices and implementations. This issue allows unauthenticated nodes to craft radio frames using “Key ID Mode 2”: a special mode using a static encryption key to bypass security checks, resulting in arbitrary IP packets being allowed on the Thread network. This provides a pathway for an attacker to send/receive arbitrary IPv6 packets to devices on the LAN, potentially exploiting them if they lack additional authentication or contain any network vulnerabilities that would normally be mitigated by the home router’s NAT firewall. Effected devices have been mitigated through an automatic update beyond the affected range.
- Product
- Nest Hub Max
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupport.google.comsupport.google.com
Jul 2, 2021OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.CVE-2021-33889 · Other software · Openthread · reported by MITREMedium 6.8
OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.
- Product
- Wpantund
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 7, 2020A memory leak in Openthread's wpantund versions up to commit 0e5d1601febb869f583e944785e5685c6c747be7, when used in an environment where wpanctl is directly intCVE-2020-8916 · Computers, phones & browsers · Google LLC · reported by cve-coordination@google.comMedium 5
A memory leak in Openthread's wpantund versions up to commit 0e5d1601febb869f583e944785e5685c6c747be7, when used in an environment where wpanctl is directly interfacing with the control driver (eg: debug environments) can allow an attacker to crash the service (DoS). We recommend updating, or to restrict access in your debug environments.
- Product
- wpantund
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 28, 2020OpenThread before 2019-12-13 has a stack-based buffer overflow in MeshCoP::Commissioner::GeneratePskc.CVE-2019-20791 · Computers, phones & browsers · Google · reported by MITRECritical 9.8
OpenThread before 2019-12-13 has a stack-based buffer overflow in MeshCoP::Commissioner::GeneratePskc.
- Product
- Openthread
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.chromium.orggithub.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.
Weekly security brief
The flaws that hit local websites, every Friday.
One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.
Tell us what you're building.
A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.
Not ready to talk yet? Run the free website check and see what Google sees.