Vulnerability in Bitcoin Core
CVE-2023-50428
In Bitcoin Core through 26.0 and Bitcoin Knots before 25.1.knots20231115, datacarrier size limits can be bypassed by obfuscating data as code (e.g., with OP_FALSE OP_IF), as exploited in the wild by Inscriptions in 2022 and 2023. NOTE: although this is a vulnerability from the perspective of the Bitcoin Knots project, some others consider it "not a bug."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.008 (54.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: -0.000
Affected products
Public proof-of-concept exploits
References
- en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures (Third Party Advisory)
- twitter.com/LukeDashjr/status/1732204937466032285 (Third Party Advisory, Issue Tracking)
- github.com/bitcoin/bitcoin/pull/28408 (Issue Tracking)
- github.com/bitcoinknots/bitcoin/blob/aed49ce8989334c364a219a6eb016a3897d4e3d7/d… (Release Notes)
- github.com/bitcoin/bitcoin/tags (Product)
- github.com/bitcoin/bitcoin/blob/65c05db660b2ca1d0076b0d8573a6760b3228068/src/ke…
Frequently asked questions
- What is CVE-2023-50428?
- CVE-2023-50428 is a medium-severity vulnerability in Bitcoin Core. CVSS score: 5.3/10. Published 2023-12-09.
- How severe is CVE-2023-50428?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2023-50428 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.