CVE-2019-14859: python-ecdsa_project python-ecdsa
Vulnerability summary
CVE-2019-14859 is a critical (CVSS 9.1) vulnerability in python-ecdsa_project python-ecdsa. EPSS estimates a 1.53% chance of exploitation in the next 30 days, higher than 74.8% of scored vulnerabilities. 2 public exploits are recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 13 · Related 9Timeline
- 02-01-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.
CVSS metrics
10 scores · 6 sources · 4 versions- OSV · PypiEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · UbuntuEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · AlpineEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- NVDNIST7.4HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · UbuntuEcosystem advisory · calculated7.4HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
1.53%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.53% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
2 foundPython Ecdsa
Maturity: poc
Exploit Reference (bugzilla.redhat.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat3 products
- ceph_storage2.0 | 3.0
- openstack10 | 13 | 14 | 15
- virtualization4.0
Alpine1 product
- py3-ecdsa< 0.13.3-r0
Debian1 product
- python-ecdsa< 0.13.3-1
PyPI1 product
- ecdsa< 0.13.3
Python-ecdsa_project1 product
- python-ecdsa< 0.13.3
Red hat1 product
- python-ecdsaall python-ecdsa versions before 0.13.3
Ubuntu1 product
- python-ecdsa< 0.13-2ubuntu0.16.04.1 | < 0.13-2ubuntu0.18.04.1
7 vendors · 9 products
References
20 links- github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3X Refsource MISCRelease NotesThird Party AdvisoryWEB
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859X Refsource CONFIRMExploitIssue TrackingPatchThird Party AdvisoryWEBREPORT
