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CVE-2026-29004VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-29004· High 7.2

Not known to be exploited · CVSS 7.2 High.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 4.0 base score
7.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
vda-linuxbusybox_mirrorAffected
  • =0
Fixed in–
GitHubvda-linux/busybox_mirrorpkg:github/vda-linux/busybox_mirrorOther threatsAffected
  • =0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released updated BusyBox RPMs (version 1.37.0-7.3.hum1) as part of the Red Hat Hardened Images security update to address this vulnerability. Users should apply these updates to remediate the issue. Until patched, restrict network access to systems running BusyBox DHCPv6 client to only trusted DHCPv6 servers. If DHCPv6 client functionality is not essential, disable the 'udhcpc6' service or configure it to accept responses only from trusted sources. Consult product-specific documentation for network service management. Changes may require service restarts and could impact network connectivity.

Description

This update for busybox fixes the following issue - CVE-2026-29004: a crafted DHCPv6 response can lead to a heap buffer overflow in the DHCPv6 client (bsc#1263989).

References

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