CVE-2026-2291VulnerabilityPublished 13 May 2026Updated 10 Nov 2026

SUSE · Security update for dnsmasq

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Not known to be exploited · fixed in SUSE package updates : patch SUSE soon.

Data as of 10 Nov 2026, 20:06 UTC

Severity

High

Rated by Threat Radar · No CVSS score from NVD or the CNA

Patch: Available – fixed in 4.0

Exploitation evidence

Disclosed: evidence found.
CVE published 13 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

Description

This update for dnsmasq fixes the following issues Security issues: - CVE-2026-2291: dnsmasq can be abused to record false cached data enabling DoS or attacker redirect (bsc#1258251). - CVE-2026-4890: DoS vulnerability in the DNSSEC validation (bsc#1265001). - CVE-2026-4891: heap-based out-of-bounds read vulnerability in the DNSSEC validation (bsc#1265002). - CVE-2026-4892: heap-based out-of-bounds write vulnerability in the DHCPv6 implementation (bsc#1265003). - CVE-2026-4893: information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks (bsc#1265004). - CVE-2026-5172: buffer overflow in dnsmasq's extract_addresses() function (bsc#1265006). - CVE-2026-6507: out-of-bounds write in DHCP BOOTREPLY processing can lead to denial of service (bsc#1262487). Non security issues: - aardvark-dns upstream tests make dnsmasq dump core (bsc#1247812). - Drop rcFOO symlinks for CODE16 (jsc#PED-266. - libnettle: update to 4.0 breaks dnsmasq and gnutls (bsc#1257934). - unknown user or group: dnsmasq with latest proposed dnsmasq update when doing virsh net-start (bsc#1235517). - Update to security release 2.92rel2.

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Exploitation evidence

Description

Public exploits and detectionGitHub proofs of concept

Technical details

References

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