Vulnerability in Bitmessage Pybitmessage
CVE-2021-26917
PyBitmessage through 0.6.3.2 allows attackers to write screen captures to Potentially Unwanted Directories via a crafted apinotifypath value. NOTE: the discoverer states "security mitigation may not be necessary as there is no evidence yet that these screen intercepts are actually transported away from the local host." NOTE: it is unclear whether there are any common use cases in which apinotifypath is controlled by an attacker
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (44.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
References
- poal.co/s/technology/290479 (Exploit, Third Party Advisory)
- github.com/Bitmessage/PyBitmessage/releases (Third Party Advisory, Release Notes)
- github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a… (Patch, Third Party Advisory)
- attack.mitre.org/techniques/T1113/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-26917?
- CVE-2021-26917 is a medium-severity vulnerability in Bitmessage Pybitmessage. CVSS score: 5.5/10. Published 2021-02-08.
- How severe is CVE-2021-26917?
- Medium severity. CVSS v3 base score is 5.5 out of 10.