Detections
Analytics
Bottlerocket: bottlerocket-runc, runc: security update to 1.2.7
high Tenable Cloud Security Plugin ID 435981
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- runc is a CLI tool for spawning and running containers according to the OCI specification. In versions
1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs
files through the use of a racing container with shared mounts (we have also verified this attack is
possible to exploit using a standard Dockerfile with docker buildx build as that also permits triggering
parallel execution of containers with custom shared mounts configured). This redirect could be through
symbolic links in a tmpfs or theoretically other methods such as regular bind-mounts. While similar, the
mitigation applied for the related CVE, CVE-2019-19921, was fairly limited and effectively only caused
runc to verify that when LSM labels are written they are actually procfs files. This issue is fixed in
versions 1.2.8, 1.3.3, and 1.4.0-rc.3. (CVE-2025-52881)
Plugin Details
Severity: High
ID: 435981
Version: Revision 1.7
Type: Local
Published: 11/7/2025
Updated: 7/2/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: High
Score: 7.7
Percentile: 99.07
CVSS v2
Risk Factor: Medium
Base Score: 6
Temporal Score: 4.7
Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2025-52881
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.7
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 7.3
Threat Score: 5.9
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Vulnerability Information
Exploit Available: true
Exploit Ease: Exploits are available
Vulnerability Publication Date: 11/5/2025
Reference Information
CVE: CVE-2025-52881