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.
19 results
Oct 28, 2026An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in AccessManager in Juniper Networks Session Smart RCVE-2026-106079 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.8
An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in AccessManager in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with config-write privileges to achieve arbitrary command execution as root in the YANG configuration.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Integer Underflow vulnerability in DhcpMessageDecoder in Juniper Networks Session Smart Router allows an attacker with local network access to cause informatCVE-2026-103411 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.1
An Integer Underflow vulnerability in DhcpMessageDecoder in Juniper Networks Session Smart Router allows an attacker with local network access to cause information disclosure and a denial of service via a malicious DHCP reply.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Integer Overflow vulnerability in the DPI certificate scanner in Juniper Networks Session Smart Router allows an unauthenticated remote attacker to cause a dCVE-2026-103410 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.5
An Integer Overflow vulnerability in the DPI certificate scanner in Juniper Networks Session Smart Router allows an unauthenticated remote attacker to cause a denial of service via a specially crafted TLS server certificate.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026A Missing authentication for critical function vulnerability in Juniper Networks Session Smart Router allows an unauthenticated network-based attacker to obtainCVE-2026-103409 · Network & remote access · Juniper Networks · reported by sirt@juniper.netCritical 9.8
A Missing authentication for critical function vulnerability in Juniper Networks Session Smart Router allows an unauthenticated network-based attacker to obtain administrative privileges by passing crafted URL parameters to an insecure endpoint running as root. Note that this vulnerability can only be exploited prior to the device being onboarded to Mist/Conductor. The issue can no longer be exploited once a device is onboarded to Mist/Conductor.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026A Stack Buffer Overflow vulnerability in the DHCP client in Juniper Networks Session Smart Router allows an unauthenticated attacker on the local network to achCVE-2026-103408 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.8
A Stack Buffer Overflow vulnerability in the DHCP client in Juniper Networks Session Smart Router allows an unauthenticated attacker on the local network to achieve remote code execution via a malicious DHCP reply.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Improper Limitation of a Pathname to a Restricted Directory vulnerability in ConfigDirector in Juniper Networks Session Smart Router and Session Smart ConducCVE-2026-103407 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.8
An Improper Limitation of a Pathname to a Restricted Directory vulnerability in ConfigDirector in Juniper Networks Session Smart Router and Session Smart Conductor allows an authenticated REST user to read, overwrite, or delete arbitrary certificate and key files on the host filesystem via the certificate and private-key REST API.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the web server in Juniper Networks SessioCVE-2026-103405 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 5.8
An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the web server in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to inject arbitrary HTTP headers via unsanitized request body parameters.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in AccessManager in Juniper Networks Session Smart RCVE-2026-103403 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.8
An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in AccessManager in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to perform arbitrary file deletion and arbitrary command execution via the deletion of an audit rule.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Insufficient Verification of Data Authenticity vulnerability in PCLI in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker CVE-2026-103402 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.8
An Insufficient Verification of Data Authenticity vulnerability in PCLI in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with write access to the model cache directory to execute arbitrary code and escalate privileges via the processing of unverified cache files.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Improper Link Resolution Before File Access ('Link Following') vulnerability in the unauthenticated web server handlers in Juniper Networks Session Smart RouCVE-2026-103401 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.8
An Improper Link Resolution Before File Access ('Link Following') vulnerability in the unauthenticated web server handlers in Juniper Networks Session Smart Router and Session Smart Conductor allows a local unprivileged user to overwrite arbitrary files as root via unauthenticated API endpoints. This vulnerability can be exploited on Mist-managed routers and on unmanaged Routers that have not yet been onboarded to a Conductor. Routers already managed by Conductor are not affected.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the ember service in Juniper Networks SesCVE-2026-103400 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 5.5
An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the ember service in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with local access to unmount arbitrary filesystems or cause a denial of service via the creation of specially named directories and a service restart.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Improper Initialization vulnerability in the SSR software in Juniper Networks Session Smart Router allows an attacker to decrypt traffic or cause a denial ofCVE-2026-103394 · Network & remote access · Juniper Networks · reported by sirt@juniper.netLow 3.7
An Improper Initialization vulnerability in the SSR software in Juniper Networks Session Smart Router allows an attacker to decrypt traffic or cause a denial of service via security policy assignment.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Out-of-Bounds Read vulnerability in the VRRP implementation in Juniper Networks Session Smart Router allows an L2-adjacent attacker to read stale memory contCVE-2026-103393 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 4.3
An Out-of-Bounds Read vulnerability in the VRRP implementation in Juniper Networks Session Smart Router allows an L2-adjacent attacker to read stale memory contents or cause a system fault via a specially crafted VRRPv3 advertisement.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Out-of-Bounds Write vulnerability in the TCP header processing in Juniper Networks Session Smart Router allows an attacker to corrupt TCP payload data and poCVE-2026-103392 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 4.8
An Out-of-Bounds Write vulnerability in the TCP header processing in Juniper Networks Session Smart Router allows an attacker to corrupt TCP payload data and potentially cause session desynchronization via a transit TCP packet with an oversized SACK option length.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Out-of-bounds Write vulnerability in the SSR TCP proxy/optimization path in Juniper Networks Session Smart Router allows an attacker to corrupt forwarded pacCVE-2026-103391 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 5.3
An Out-of-bounds Write vulnerability in the SSR TCP proxy/optimization path in Juniper Networks Session Smart Router allows an attacker to corrupt forwarded packet data and potentially cause a data-plane crash via a transit TCP packet with a crafted TCP option length.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Oct 28, 2026An Out-of-Bounds Read vulnerability in the HttpParser component in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to causeCVE-2026-103390 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 5.3
An Out-of-Bounds Read vulnerability in the HttpParser component in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to cause a denial of service via a specially crafted HTTP request.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupportportal.juniper.net
Jan 27, 2026An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router may allows a network-based attacker to bypassCVE-2025-21589 · Network & remote access · Juniper Networks · reported by sirt@juniper.netCritical 9.3
An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router may allows a network-based attacker to bypass authentication and take administrative control of the device. This issue affects Session Smart Router: * from 5.6.7 before 5.6.17, * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts, * from 6.2 before 6.2.8-lts, * from 6.3 before 6.3.3-r2; This issue affects Session Smart Conductor: * from 5.6.7 before 5.6.17, * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts, * from 6.2 before 6.2.8-lts, * from 6.3 before 6.3.3-r2; This issue affects WAN Assurance Managed Routers: * from 5.6.7 before 5.6.17, * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts, * from 6.2 before 6.2.8-lts, * from 6.3 before 6.3.3-r2.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netsupport.juniper.net
Jun 27, 2024An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router or conductor running with a redundant peer alCVE-2024-2973 · Network & remote access · Juniper Networks · reported by sirt@juniper.netCritical 10
An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router or conductor running with a redundant peer allows a network based attacker to bypass authentication and take full control of the device. Only routers or conductors that are running in high-availability redundant configurations are affected by this vulnerability. No other Juniper Networks products or platforms are affected by this issue. This issue affects: Session Smart Router: * All versions before 5.6.15, * from 6.0 before 6.1.9-lts, * from 6.2 before 6.2.5-sts. Session Smart Conductor: * All versions before 5.6.15, * from 6.0 before 6.1.9-lts, * from 6.2 before 6.2.5-sts. WAN Assurance Router: * 6.0 versions before 6.1.9-lts, * 6.2 versions before 6.2.5-sts.
- Product
- Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupport.juniper.netsupportportal.juniper.net
Oct 19, 2021The usage of an internal HTTP header created an authentication bypass vulnerability (CWE-287), allowing an attacker to view internal files, change settings, manCVE-2021-31349 · Network & remote access · Juniper Networks · reported by sirt@juniper.netCritical 9.8
The usage of an internal HTTP header created an authentication bypass vulnerability (CWE-287), allowing an attacker to view internal files, change settings, manipulate services and execute arbitrary code. This issue affects all Juniper Networks 128 Technology Session Smart Router versions prior to 4.5.11, and all versions of 5.0 up to and including 5.0.1.
- Product
- 128 Technology Session Smart Router
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
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.