HIGHCVSS 7.5Vulnerability
CVE-2026-48486
Signum Node is a HDD-mined cryptocurrency using an energy efficient and fair Proof-of-Commitment (PoC+) consensus algorithm. Prior to version 3.9.9, an integer overflow in BlockServiceImpl.applyBlock() allowed a miner to receive an arbitrarily inflated block reward by crafting a block with a negative totalFeeCashBackNqt value. The vulnerability was introduced when the SMART_FEES hardfork (block ~1,029,000) enabled fee cash-back and burn accounting without overflow protection. This issue has been patched in version 3.9.9.
Properties
- Severity
- HIGH
- Cvss score
- 7.5
- Cvss severity
- HIGH
- Epss score
- 0.00333
- Retrieved at
- 2026-10-21T01:24:49+00:00
- Last source
- FIRST EPSS
- Score
- 7.5
- Cve id
- CVE-2026-48486
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L
- First seen by Signal
- 2026-09-15T21:12:51+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L
- Published at
- 2026-09-03T16:17:24.330
- Last modified
- 2026-09-09T21:09:13.080
- Epss percentile
- 0.25039
Related Entities (1)
HAS_WEAKNESS (1)
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