VulnSocial

CVE-2026-29004Disclosure

LOWCVSS 7.2 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

BusyBox before commit 42202bf contains a heap buffer overflow vulnerability in the DHCPv6 client (udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c that allows network-adjacent attackers to trigger memory corruption by sending a crafted DHCPv6 response with a malformed D6_OPT_DNS_SERVERS option. Attackers can exploit incorrect heap buffer allocation calculations in the option_to_env() function to cause denial of service or achieve arbitrary code execution on embedded systems without heap hardening.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-122CWE-131

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 4 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 4 signals
  • Disclosure: 4 classified signals
  • Peaked 1d ago at 3 mentions (2026-05-04); latest day: 1
  • 4 total mentions across 2 days

Deep dive

Activity timeline4 mentions / 2d
01223Mentions · 2026-05-04: 3Mentions · 2026-05-27: 1Technical Details · 2026-05-04: 3Technical Details · 2026-05-27: 105-0405-27
Signal classification1 categories
Disclosure
4100.0%
Referenced assets5 URLs
Classification over time
DateTotalLabels
2026-05-043
Disclosure3
2026-05-271
Disclosure1
Full discourse4 posts
  • Ferramentas Linux@Cezar_H_Linux
    Disclosure

    Vulnerabilidade crítica no BusyBox (CVE-2026-29004) exige ação imediata em servidores SUSE. O problema é um heap buffer overflow no cliente DHCPv6 que pode ser explorado remotamente para execução de código. Saiba mais -> https://tinyurl.com/2s4kftbc #SUSE https://t.co/4wUUPk4cY2

    Post summary

    The post announces a critical CVE‑2026‑29004 bug in BusyBox’s DHCPv6 client—a heap buffer overflow enabling remote code execution—calling for immediate action on SUSE servers.

    1000067
    1.5K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-29004 BusyBox before commit 42202bf contains a heap buffer overflow vulnerability in the DHCPv6 client (udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c t… https://www.cve.org/CVERecord?id=CVE-2026-29004

    Post summary

    A new heap buffer overflow vulnerability has been identified in BusyBox's DHCPv6 client, specifically targeting the DNS_SERVERS option handler, with no PoC or exploit disclosed.

    00010219
    57.4K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-29004 Heap Buffer Overflow in BusyBox DHCPv6 Client DNS_SERVERS Option ... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-29004 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4

    Post summary

    CVE-2026-29004 is a newly disclosed heap buffer overflow in BusyBox's DHCPv6 client, but no PoC, exploit code, active exploitation, patch, or false‑positive claim is provided.

    0000049
    4.0K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-29004 BusyBox before commit 42202bf contains a heap buffer overflow vulnerability in the DHCPv6 client (udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c t… https://www.cve.org/CVERecord?id=CVE-2026-29004 ----- Traducción: CVE-2026-29004 Bus… http://infoflow.cloud`

    Post summary

    The tweet announces CVE‑2026‑29004, describing a heap buffer overflow in BusyBox’s DHCPv6 client, but does not provide any PoC, exploit, patch, or evidence of active exploitation.

    0000037
    75 followersView on X

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