CVE-2026-6878

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

0.33% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 26.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/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

Deferred. 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

2026-04-23 00:00Z4 MO AGO

Last updated

2026-04-23 12:49Z4 MO AGO

Reserved

2026-04-22

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

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

Weaknesses

• CWE-264
• CWE-265

Data version

5.2

Document digest

9214272059d8ce43cf6bf1b4214625a76af895b48d2ce9ddeb7e933a54180e18

• vuldb.comVDB-359040 | ByteDance verl grader.py math_equal sandboxhttps://vuldb.com/vuln/359040vdb-entrytechnical-description
• vuldb.comVDB-359040 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/359040/ctisignaturepermissions-required
• vuldb.comSubmit #795257 | Bytedance verl <=0.7.0 Arbitrary Code Executionhttps://vuldb.com/submit/795257third-party-advisory
• github.comhttps://github.com/zast-ai/vulnerability-reports/blob/main/bytedance/verl_rce.mdexploit