CVE-2026-49435

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.77% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 53.1% of scored records. A rank, not a probability.

NVD base score

9.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-08-26.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-04 18:52Z1 MO AGO

Last updated

2026-08-04 18:59Z1 MO AGO

Reserved

2026-05-29

Assigning CNA

cisa-cg

Record state

PUBLISHED

Severity

Critical (CVSS 9.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-121Stack-based Buffer OverflowVariant

Data version

5.2

Document digest

7f65ec2f6750096021c1c344c1bb93d16c93b472829e452fd8ee843c9d07d80a

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