Is CVE-2026-49435 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-49435 being exploited in the wild.

How severe is CVE-2026-49435?

Critical severity, with a CVSS score of 9.8, published 4 August 2026.

Is there a fix for CVE-2026-49435?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-49435 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-49435?

Check whether you run Keysight Hawkeye, Keysight IxByPass, Keysight IxChariot Endpoint or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-49435: Keysight IxChariot stack buffer overflow

CVE-2026-49435 · Severity: critical · CVSS 9.8 · Published 2026-08-04

Keysight IxChariot Endpoint and related products are network performance testing tools used to measure and validate network performance in enterprise environments. An unauthenticated attacker can send a specially crafted network packet to trigger a stack buffer overflow, allowing remote code execution with administrative privileges. This could allow an attacker to take complete control of affected systems and compromise network infrastructure.

Technologies: Keysight Hawkeye, Keysight IxByPass, Keysight IxChariot Endpoint, Keysight IxProbe, Keysight IxTap. Vendors: Keysight.

Quick answers

Is CVE-2026-49435 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-49435 being exploited in the wild.
How severe is CVE-2026-49435?: Critical severity, with a CVSS score of 9.8, published 4 August 2026.
Which products and versions are affected?: Keysight Hawkeye <6.0.7; Keysight IxByPass <3.13.0.69; Keysight IxChariot Endpoint <9.5.102, <10.0.254; Keysight IxProbe <UNKNOWN>; and 1 more.
Is there a fix for CVE-2026-49435?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-49435 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-49435?: Check whether you run Keysight Hawkeye, Keysight IxByPass, Keysight IxChariot Endpoint or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a stack-based buffer overflow in Keysight IxChariot Endpoint and associated products (Hawkeye, IxTap, IxByPass, and IxProbe). An unauthenticated remote attacker can send a specially crafted packet to trigger the overflow condition and execute arbitrary code with administrative privileges. The attack requires network reachability to the affected endpoint but no authentication or user interaction. Patches are available; affected versions should be upgraded to IxChariot 9.5.102 or 10.0.254 (or later), Hawkeye 6.0.7 (or later), and IxByPass 3.13.0.69 (or later).

Affected products

Keysight IxChariot Endpoint <9.5.102, <10.0.254
Keysight Hawkeye <6.0.7
Keysight IxTap <UNKNOWN>
Keysight IxByPass <3.13.0.69
Keysight IxProbe <UNKNOWN>

Timeline

2026-08-04: disclosed: CISA advisory VA-26-216-01 published

References

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