CVE-2017-18641
CVE-2017-18641 is a high-severity vulnerability in Linuxcontainers Lxc with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 9.3
- EPSS exploit prediction: 1% (68th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Linuxcontainers Lxc
- Published:
- Last modified:
Description
In LXC 2.0, many template scripts download code over cleartext HTTP, and omit a digital-signature check, before running it to bootstrap containers.
Frequently asked questions
- What is CVE-2017-18641?
- In LXC 2.0, many template scripts download code over cleartext HTTP, and omit a digital-signature check, before running it to bootstrap containers.
- How severe is CVE-2017-18641?
- CVE-2017-18641 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-18641 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-18641?
- CVE-2017-18641 affects Linuxcontainers Lxc. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-18641?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2017-18641 published?
- CVE-2017-18641 was published on 2020-02-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:linuxcontainers:lxc:2.0.0:-:*:*:*:*:*:*
More vulnerabilities in Linuxcontainers Lxc
- CVE-2016-8649 — Critical (CVSS 9.1): lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an…
- CVE-2019-5736 — High (CVSS 8.6): runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc…
- CVE-2016-10124 — High (CVSS 8.6): An issue was discovered in Linux Containers (LXC) before 2016-02-22. When executing a program via lxc-attach, the…
- CVE-2015-1335 — High (CVSS 7.2): lxc-start in lxc before 1.0.8 and 1.1.x before 1.1.4 allows local container administrators to escape AppArmor…
- CVE-2013-6441 — High (CVSS 7.2): The lxc-sshd template (templates/lxc-sshd.in) in LXC before 1.0.0.beta2 uses read-write permissions when mounting…
- CVE-2026-39402 — Medium (CVSS 6.5): lxc is a Linux container runtime. In the setuid helper lxc-user-nic, the delete path contains a logic flaw in the…
All CVEs affecting Linuxcontainers Lxc →
Other CWE-287 (Improper Authentication) vulnerabilities
- CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
- CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
- CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
- CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
- CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…
Browse all CWE-287 (Improper Authentication) vulnerabilities →