How severe is CVE-2017-18226?

CVE-2017-18226 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-18226 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18226?

CVE-2017-18226 affects Jabberd2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18226?

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

When was CVE-2017-18226 published?

CVE-2017-18226 was published on 2018-03-12 and last updated on 2026-06-17.

CVE-2017-18226

CVE-2017-18226 is a medium-severity vulnerability in Jabberd2 with a CVSS 3.x base score of 5.5. 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-732.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Jabberd2
Published: 2018-03-12
Last modified: 2026-06-17

Description

The Gentoo net-im/jabberd2 package through 2.6.1 sets the ownership of /var/run/jabber to the jabber account, which might allow local users to kill arbitrary processes by leveraging access to this account for PID file modification before a root script executes a "kill -TERM `cat /var/run/jabber/filename.pid`" command.

Frequently asked questions

What is CVE-2017-18226?: The Gentoo net-im/jabberd2 package through 2.6.1 sets the ownership of /var/run/jabber to the jabber account, which might allow local users to kill arbitrary processes by leveraging access to this account for PID file modification before a root script executes a "kill -TERM `cat /var/run/jabber/filename.pid`" command.
How severe is CVE-2017-18226?: CVE-2017-18226 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-18226 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18226?: CVE-2017-18226 affects Jabberd2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18226?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18226 published?: CVE-2017-18226 was published on 2018-03-12 and last updated on 2026-06-17.

References

https://bugs.gentoo.org/631068

Affected products (1)

cpe:2.3:a:jabberd2:jabberd2:*:*:*:*:*:*:*:*

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