Is CVE-2015-1822 in the CISA KEV catalog?

No. CVE-2015-1822 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-1822?

CVE-2015-1822 has a CVSS v2 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2015-1822?

CVE-2015-1822 has an EPSS score of 2.96% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-1822?

Upgrade chrony on debian 11 to 1.30-2 or later.

CVE & CISA-KEV Catalog

CVE-2015-1822

MEDIUMEPSS 85th pctl

6.5

CVSS v2

NVD

Description

chrony before 1.31.1 does not initialize the last "next" pointer when saving unacknowledged replies to command requests, which allows remote authenticated users to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a large number of command requests.

CWE-17

How to fix

Remediation Available

chronyDebian

Fixed in:1.30-2CVE-2015-1822

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.96%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Patch1

listengine.tuxfamily.org

Other references4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.