CVE-2021-29449

CVE-2021-29449 is a medium-severity vulnerability in Pi-hole with a CVSS 3.x base score of 6.3. 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-78.

Key facts

Description

Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Multiple privilege escalation vulnerabilities were discovered in version 5.2.4 of Pi-hole core. See the referenced GitHub security advisory for details.

Frequently asked questions

What is CVE-2021-29449?
Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Multiple privilege escalation vulnerabilities were discovered in version 5.2.4 of Pi-hole core. See the referenced GitHub security advisory for details.
How severe is CVE-2021-29449?
CVE-2021-29449 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-29449 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29449?
CVE-2021-29449 affects Pi-hole. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29449?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-29449 published?
CVE-2021-29449 was published on 2021-04-14 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Pi-hole

All CVEs affecting Pi-hole →

Other CWE-78 (OS Command Injection) vulnerabilities

Browse all CWE-78 (OS Command Injection) vulnerabilities →