Samourai Wallet Stonewallx2 0.99.98e allows a denial of service via a P2P coinjoin. The attacker and victim must follow each other's paynym. Then, the victim must try to collaborate with the attacker for a Stonewallx2 transaction. Next, the attacker broadcasts a tx, spending the inputs used in Stonewallx2 before the victim can broadcast the collaborative transaction. The attacker does not signal opt in RBF, and uses the lowest fee rate. This would result in the victim being unable to perform Stonewallx2. (Note that the attacker could use multiple paynyms.)
Conclusion & alert: CVE-2022-35913 is rated Low Risk (36.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.33%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-02-16 | 0.12% | 0.33% | +0.20% |
| 2 | 2025-12-07 | 0.33% | 0.12% | -0.20% |
| 3 | 2025-11-21 | — | 0.33% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
| URL | Tags |
|---|---|
| https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-July/020737.html | Mailing List Third Party Advisory |
| https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-June/020595.html | Mailing List Third Party Advisory |