CVE-2021-4276: UNSUPPORTED WHEN ASSIGNED A vulnerability was found in dns-stats hedgehog

Q: How do I fix CVE-2021-4276?

hedgehog: upgrade to 2021-05-13. Exact commands for each OS are on this page.

Q: Is CVE-2021-4276 being exploited?

CVE-2021-4276 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-4276 affect?

CVE-2021-4276 affects hedgehog. Severity is medium (CVSS 4.1). ** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in dns-stats hedgehog. It has been rated as problematic. Affected by this issue is the function DSCIOManager::dsc_import_input_from_source of the file src/DSCIOManager.cpp. The manip

Q: How urgent is CVE-2021-4276?

Priority 27/100. No elevated risk signals yet.

Routine

MEDIUM 4.1UPGRADE

CVE-2021-4276 is a medium-severity flaw (CVSS 4.1) affecting hedgehog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in dns-stats hedgehog. It has been rated as problematic. Affected by this issue is the function DSCIOManager::dsc_import_input_from_source of the file src/DSCIOManager.cpp. The manipulation leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The na

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.1 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	None
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-12-25
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: dns-stats

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-12-25 11:15 UTCPublished CVE record published
2026-06-17 04:19 UTCUpdated Record last modified

dns-stats hedgehog UPGRADE

Affected: < 2021-05-13

Fixed in: 2021-05-13

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy hedgehog || rpm -q hedgehog || hedgehog --version

2. UPGRADE to 2021-05-13 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade hedgehog

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade hedgehog

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-4276?