What’s Vulnerable › Vulnerabilities

CVE-2026-49435: Keysight IxChariot-related products stack-based buffer overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-04 · updated 2026-08-26
• Weakness: CWE-121

Description

Keysight IxChariot Endpoint and associated products contain a stack-based buffer overflow. An unauthenticated remote attacker can send a specially crafted packet and execute arbitrary code with administrative privileges.

Affected products

• Keysight Hawkeye: before 6.0.7 — fixed in 6.0.7
• Keysight IxByPass: before 3.13.0.69 — fixed in 3.13.0.69
• Keysight IxChariot: before 10.0.254 — fixed in 10.0.254
• Keysight IxProbe: before 3.13.0 — fixed in 3.13.0
• Keysight IxTap: before 3.13.0 — fixed in 3.13.0

How to fix

Upgrade to a fixed version: Keysight Hawkeye 6.0.7; Keysight IxByPass 3.13.0.69; Keysight IxChariot 10.0.254; Keysight IxProbe 3.13.0; Keysight IxTap 3.13.0. Check the vendor advisory for mitigations.

References

• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-216-01.json
• https://www.cve.org/CVERecord?id=CVE-2026-49435
• https://www.keysight.com/us/en/about/quality-and-security/security/product-and-solution-cyber-security/security-advisory-archive/security-advisory--ixchariot-vulnerability.html
• https://www.keysight.com/us/en/lib/software-detail/computer-software/hawkeye.html
• https://www.keysight.com/us/en/lib/software-detail/computer-software/ixchariot.html
• https://www.keysight.com/us/en/lib/software-detail/instrument-firmware-software/ixprobe.html
• https://www.keysight.com/us/en/product/IXTP-CU3-T/copper-taps---ixtp-cu3-t.html

Get alerted when CVE-2026-49435 or the next vulnerability affects your stack