CVE-2026-2656

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 9.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

Analyzed. NVD last modified this record on 2026-06-17.

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

2026-02-18 14:32Z6 MO AGO

Last updated

2026-02-23 10:17Z6 MO AGO

Reserved

2026-02-18

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Low (CVSS 2.0)

CNA CVSS vector

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

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-416Use After FreeVariant

Data version

5.2

Document digest

b2c0fa6a42a692a6aee057b03825d0221aece80f3a1dbb1f2bf475170258dae9

• vuldb.comVDB-346454 | ChaiScript type_info.hpp bare_equal use after freehttps://vuldb.com/?id.346454vdb-entrytechnical-description
• vuldb.comVDB-346454 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.346454signaturepermissions-required
• vuldb.comSubmit #752790 | ChaiScript develop branch Use After Freehttps://vuldb.com/?submit.752790third-party-advisory
• github.comhttps://github.com/ChaiScript/ChaiScript/issues/636issue-tracking
• github.comhttps://github.com/ChaiScript/ChaiScript/issues/636#issue-3828333582exploitissue-tracking
• github.comhttps://github.com/ChaiScript/ChaiScript/product