HIGH
CVE-2026-40583
CWE-460Published: April 21, 2026· Updated: Apr 27, 2026
8.2
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:12.2th
Official Description
UltraDAG is a minimal DAG-BFT blockchain in Rust. In version 0.1, a non-council attacker can submit a signed SmartOp::Vote transaction that passes signature, nonce, and balance prechecks, but fails authorization only after state mutation has already occurred.
Technical Analysis
CVE-2026-40583 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 8.2.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Affected Vendors & Products
ultradag1 product
ultradag
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7ppExploit · Mitigation · Vendor Advisory
→
https://github.com/UltraDAGcom/core/security/advisories/GHSA-q8wx-2crx-c7ppExploit · Mitigation · Vendor Advisory
Quick Facts
CVE IDCVE-2026-40583
CVSS Score8.2 / 10
SeverityHIGH
WeaknessCWE-460
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedApr 21, 2026
Related CVEs (CWE-460)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-40583 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.