How severe is CVE-2013-4327?

CVE-2013-4327 has a CVSS 2.0 base score of 6.9, rated medium severity.

Is CVE-2013-4327 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4327?

CVE-2013-4327 primarily affects Systemd Project Systemd. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4327?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-4327 published?

CVE-2013-4327 was published on 2013-10-03 and last updated on 2026-06-16.

CVE-2013-4327

CVE-2013-4327 is a medium-severity vulnerability in Systemd Project Systemd with a CVSS 2.0 base score of 6.9. 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: Medium (CVSS 2.0 base score 6.9)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Systemd Project Systemd
Published: 2013-10-03
Last modified: 2026-06-16

Description

systemd does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.

Frequently asked questions

What is CVE-2013-4327?: systemd does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.
How severe is CVE-2013-4327?: CVE-2013-4327 has a CVSS 2.0 base score of 6.9, rated medium severity.
Is CVE-2013-4327 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4327?: CVE-2013-4327 primarily affects Systemd Project Systemd. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4327?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4327 published?: CVE-2013-4327 was published on 2013-10-03 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:*

More vulnerabilities in Systemd Project Systemd

CVE-2022-2526 — Critical (CVSS 9.8): A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and…
CVE-2018-21029 — Critical (CVSS 9.8): systemd 239 through 245 accepts any certificate signed by a trusted certificate authority for DNS Over TLS. Server Name…
CVE-2015-7510 — Critical (CVSS 9.8): Stack-based buffer overflow in the getpwnam and getgrnam functions of the NSS module nss-mymachines in systemd.
CVE-2017-1000082 — Critical (CVSS 9.8): systemd v233 and earlier fails to safely parse usernames starting with a numeric digit (e.g. "0day"), running the…
CVE-2018-15688 — High (CVSS 8.8): A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory…
CVE-2023-26604 — High (CVSS 7.8): systemd before 247 does not adequately block local privilege escalation for some Sudo configurations, e.g., plausible…

All CVEs affecting Systemd Project Systemd →

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 →