The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
CVE-2026-76460 is a critical authentication-bypass vulnerability in an API endpoint in Cisco Identity Services Engine (ISE), not a generic case of privileged APIs being used incorrectly. Cisco says a crafted request could let an unauthenticated remote attacker bypass the web-based management interface and gain unauthorized access to an affected device. Cisco rates it CVSS 10.0 and says its PSIRT is aware of active exploitation.
What does CVE-2026-76460 do?
Cisco describes the flaw as insufficient authentication control on an API endpoint. Its advisory states: “A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication.” Successful exploitation may provide unauthorized access; Cisco warns that threat actors may obtain root-level command execution. That outcome is possible, not guaranteed in every exploitation attempt.
The vulnerability is CVE-2026-76460, CWE-648, and Cisco advisory ID cisco-sa-ISE-ABP-VNSW7Tn5. Cisco’s advisory was first published September 16, 2026. Read Cisco’s security advisory.
Is CVE-2026-76460 being exploited?
Yes. Cisco says: “The Cisco PSIRT is aware of active exploitation of this vulnerability.” Treat an exposed, unpatched system as an urgent security risk and prioritize Cisco’s fixed release and incident checks if compromise is suspected.
#1 Best Overall
- Stateful firewall throughput: 450 Mbps.
- Recommended maximum clients: 50.
- Managed centrally over the web. Classifies applications, users and devices.
- Layer 7 application visibility and traffic shaping. Application prioritization.
- Dimensions: 9.4 x 5.1 x 1.1 inches. Weight: 1.54 lbs (24.69 ounces).
Is my Cisco ISE version affected by CVE-2026-76460?
Cisco says Cisco ISE and Cisco ISE Passive Identity Connector (ISE-PIC) are affected regardless of device configuration. Compare the installed release branch with Cisco’s first fixed release for that branch:
| Installed release branch | First fixed release specified by Cisco |
|---|---|
| 3.1 | 3.1 Patch 12 |
| 3.2 | 3.2 Patch 11 |
| 3.3 | 3.3 Patch 12 |
| 3.4 | 3.4 Patch 7 |
| 3.5 | 3.5 Patch 4 |
These are the first fixed releases listed in Cisco’s advisory, not a substitute for checking the exact installed version and upgrade path. Cisco says release 3.0 has reached end of software maintenance; administrators on 3.0 should migrate to a supported release that includes the fix. Confirm compatibility and current guidance in Cisco’s advisory and the applicable upgrade documentation.
Rank #2
![Cisco Meraki MX68CW-HW Network Security Firewall Appliance w/ Power Adapter & Antennas [Unclaimed & No License] (Renewed)](https://m.media-amazon.com/images/I/111X4NJOsaL._SL160_.jpg)
- MX68CW include a SIM slot and internal LTE modem. This integrated functionality removes the need for external hardware and allows for cellular visibility and configuration within the Meraki dashboard.
- One CAT 6, 300 Mbps LTE modem + 1 x Nano SIM slot (4ff form factor) +++ Global coverage with individual orderable SKUs for North America and worldwide
- MX68CW include two ports with 802.3at (PoE+). This built-in power capability removes the need for additional hardware to power critical branch devices.
- WAN: 2 GbE, one Cat 6 modem, one USB (cellular failover) + LAN: 10 GbE (two PoE+); Wi-Fi: 802.11ac Wave 2 + 600 Mbps firewall throughput
- Supports up to 50 users + 300 Mbps site-to-site VPN throughput
What is the fixed Cisco ISE patch?
Upgrade to the first fixed patch for the installed branch, or a later supported release that includes the fix. Cisco strongly recommends upgrading; its advisory references Cisco Technical Assistance Center (TAC) and maintenance providers for assistance with upgrade questions.
Recommended Free Tools
Is there a workaround?
No workaround addresses the vulnerability. Cisco says: “There are no workarounds that address this vulnerability.” As a temporary mitigation while preparing an upgrade, Cisco describes infrastructure access control lists (iACLs) that permit only required management and control-plane traffic destined for the affected device. This limits network access; it does not fix the vulnerable software and should not be treated as equivalent to patching.
Rank #3
- 10 × GbE (2 WAN, 2 PoE+), 1 × USB 2.0 for 3G/4G failover
- Stateful firewall throughput: 450 Mbps, VPN throughput: 200 Mbps
- Recommended maximum clients: 50, Layer 7 application visibility and traffic shaping
- Automatic firmware upgrades and security patches, VLAN support and DHCP services
- Includes 100W DC Power Supply, requires Enterprise or Advanced Security License
What logs should I check if I suspect compromise?
Cisco recommends reviewing access.log for suspicious usernames on every node, including every node in a distributed deployment. For additional logs, collect a support bundle with debug logs selected. Also check network and firewall logs outside the affected device for suspicious traffic.
- Review
access.logon each ISE node for suspicious usernames or activity. - Collect a support bundle with debug logs selected to access additional logs.
- Examine external network and firewall logs for suspicious traffic involving the affected device.
- If malicious activity is suspected, follow Cisco’s recommendation to re-image affected nodes and restore from a configuration backup if needed.
Cisco warns that attackers with root-level command execution may remove or hide evidence. Therefore, finding no obvious local indicators is not proof that the device was not compromised.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How should administrators prioritize the response?
- Identify exposure: determine whether any Cisco ISE or ISE-PIC systems run an affected release branch.
- Restrict access while upgrading: if an immediate upgrade is not possible, apply Cisco’s iACL mitigation to allow only required management and control-plane traffic.
- Install the fix: move to the first fixed patch for the branch, or a later supported release that includes it, using Cisco’s current upgrade guidance.
- Investigate suspected activity: review per-node and external logs, and take recovery steps if malicious activity is suspected.
Cisco may update its advisory, so verify its current version before operational action.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchQuick Recap
Best Value
- Professional 48V 2.08A 100W rated output, provides continuous and stable power, effectively avoid sudden shutdown, power surge and device damage
- Specially designed for Cisco ASA 5505 firewall, plug and play, no setting required, ideal replacement for original power adapter
- Compatible with Cisco Systems ASA 5505 ASA5505 Series P/N 47-18790-05 V11 ASA5505V11 ASA5505-SEC-BUN-K9 ASA5505-SEC-PLUS ASA5505-BUN-K9 ASA5505-UL-BUN-K9 ASA5505-PWR-AC Adaptive Security Appliance
- Built-in over-voltage, over-current, short-circuit and over-heat protection, high temperature resistance, stable long-term operation for office and network room use
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
