How severe is CVE-2015-1340?

CVE-2015-1340 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over physical access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-1340 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-1340?

CVE-2015-1340 affects Linuxcontainers Lxd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-1340?

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-2015-1340 published?

CVE-2015-1340 was published on 2019-04-22 and last updated on 2026-06-17.

CVE-2015-1340

CVE-2015-1340 is a high-severity vulnerability in Linuxcontainers Lxd with a CVSS 3.x base score of 7.0. 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-362.

Key facts

Severity: High (CVSS 3.x base score 7.0)
CVSS v2: 6.8
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Linuxcontainers Lxd
Published: 2019-04-22
Last modified: 2026-06-17

Description

LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker's choice.

Frequently asked questions

What is CVE-2015-1340?: LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker's choice.
How severe is CVE-2015-1340?: CVE-2015-1340 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over physical access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-1340 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-1340?: CVE-2015-1340 affects Linuxcontainers Lxd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-1340?: 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-2015-1340 published?: CVE-2015-1340 was published on 2019-04-22 and last updated on 2026-06-17.

References

https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4

Affected products (1)

cpe:2.3:a:linuxcontainers:lxd:-:*:*:*:*:*:*:*

Other CWE-362 (Race Condition) vulnerabilities

CVE-2022-27626 — Critical (CVSS 10.0): A vulnerability regarding concurrent execution using shared resource with improper synchronization ('Race Condition')…
CVE-2015-8556 — Critical (CVSS 10.0): Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1.
CVE-2014-0703 — Critical (CVSS 10.0): Cisco Wireless LAN Controller (WLC) devices 7.4 before 7.4.110.0 distribute Aironet IOS software with a race condition…
CVE-2010-1228 — Critical (CVSS 10.0): Multiple race conditions in the sandbox infrastructure in Google Chrome before 4.1.249.1036 have unspecified impact and…
CVE-2008-6598 — Critical (CVSS 10.0): Multiple race conditions in WANPIPE before 3.3.6 have unknown impact and attack vectors related to "bri restart logic."
CVE-2026-46137 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: fix potential…

Browse all CWE-362 (Race Condition) vulnerabilities →