CVE-2021-39196
In affected versions this vulnerability allows an authenticated but unprivileged user to use the REST API to capture and download packets with no capture filter and without adequate permissions.
Does this matter?
Lower severity and a low EPSS score (1.25%). Track it; it rarely justifies an emergency change on its own.
Description
pcapture is an open source dumpcap web service interface . In affected versions this vulnerability allows an authenticated but unprivileged user to use the REST API to capture and download packets with no capture filter and without adequate permissions. This is important because the capture filters can effectively limit the scope of information that a user can see in the data captures. If no filter is present, then all data on the local network segment where the program is running can be captured and downloaded. v3.12 fixes this problem. There is no workaround, you must upgrade to v3.12 or greater.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.25% probability · 69th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287, CWE-754
- Affected
- pcapture project/pcapture
- Source
- security-advisories@github.com
EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/jdhwpgmbca/pcapture/commit/0f74f431e0970a2e5784dbd955cfa4760e3b1ef7Patch, Third Party Advisory
- https://github.com/jdhwpgmbca/pcapture/issues/7Issue Tracking, Patch, Third Party Advisory
- https://github.com/jdhwpgmbca/pcapture/security/advisories/GHSA-3r67-fxpr-p2qxIssue Tracking, Third Party Advisory
- https://github.com/jdhwpgmbca/pcapture/commit/0f74f431e0970a2e5784dbd955cfa4760e3b1ef7Patch, Third Party Advisory
- https://github.com/jdhwpgmbca/pcapture/issues/7Issue Tracking, Patch, Third Party Advisory
- https://github.com/jdhwpgmbca/pcapture/security/advisories/GHSA-3r67-fxpr-p2qxIssue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.