> CVE-2026-4891

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PUBLISHED
2026-05-11 18:16
MODIFIED
2026-05-11 18:16
EPSS (Prob. Exploit)
6.41%
Top 6.3%
DATA SOURCES:
NVD 🔗 2026-05-11 FIRST EPSS 🔗 2026-11-01 OSV 🔗 2026-11-02 MSRC 🔗 2026-11-02

> DESCRIPTION

A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: dnsmasq security update
An update for dnsmasq is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: dnsmasq security update
An update for dnsmasq is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: dnsmasq security update
An update for dnsmasq is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: dnsmasq security update
An update for dnsmasq is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vuln...
Red Hat Security Advisory: OpenShift Container Platform 4.19.39 bug fix and security update
Red Hat OpenShift Container Platform release 4.19.39 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red H...
Red Hat Security Advisory: dnsmasq security, bug fix, and enhancement update
An update for dnsmasq is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vul...
Red Hat Security Advisory: dnsmasq security, bug fix, and enhancement update
An update for dnsmasq is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A C...
Red Hat Security Advisory: dnsmasq security, bug fix, and enhancement update
An update for dnsmasq is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A C...

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

CVE-2026-4891

AFFECTED PACKAGES:
Unknown / Unknown
122 versions affected

> HISTORIQUE DES MODIFICATIONS

Première apparition
11/05/2026 18:16
Source: NVD
Total des modifications: 0 Dernière mise à jour: 5 months ago

> REFERENCES

https://thekelleys.org.uk/dnsmasq/
https://www.kb.cert.org/vuls/id/471747
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