paymentrequest.py in Electrum before 4.2.2 allows a file:// URL in the r parameter of a payment request (e.g., within QR code data)
Published Jun 17, 2022
5.5
MEDIUMCVSS 3.1
EPSS 0.80%
Description
paymentrequest.py in Electrum before 4.2.2 allows a file:// URL in the r parameter of a payment request (e.g., within QR code data). On Windows, this can lead to capture of credentials over SMB. On Linux and UNIX, it can lead to a denial of service by specifying the /dev/zero filename.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.80% (0.00799) | 54.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.74% (0.00742) | 49.67th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.11% (0.00110) | 26.97th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00064) | 29.98th | v3 (v2023.03.01) |
| Apr 16, 2024 | 0.06% (0.00064) | 26.82th | v3 (v2023.03.01) |
| Nov 28, 2023 | 0.06% (0.00062) | 24.82th | v3 (v2023.03.01) |
| Jul 20, 2023 | 0.06% (0.00057) | 21.57th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00052) | 18.65th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Dec 27, 2022 | 0.89% (0.00885) | 27.27th | v2 (v2022.01.01) |
| Jun 18, 2022 | 0.89% (0.00885) | 25.27th | v2 (v2022.01.01) |
References (2)
- https://github.com/spesmilo/electrum/security/advisories/GHSA-4fh4-hx35-r355 x_refsource_MISCThird Party Advisory
- https://twitter.com/ElectrumWallet/status/1534540879905665028 x_refsource_MISCRelease NotesThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/spesmilo/electrum/security/advisories/GHSA-4fh4-hx35-r355 | x_refsource_MISCThird Party Advisory | |
| https://twitter.com/ElectrumWallet/status/1534540879905665028 | x_refsource_MISCRelease NotesThird Party Advisory |
Change history (0)
No recorded changes yet.