VulnSocial

CVE-2026-88830

LOWCVSS 7.5 · 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

A unit confusion in BusyBox TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted ClientKeyExchange message.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-131

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-24: 109-24
Full discourse1 post
  • Upwind Security MDR@UpwindMDR

    🚨High - BusyBox TLS ClientKeyExchange Heap Buffer Overflow (CVE-2026-88830) BusyBox’s TLS Montgomery reduction buffer allocation has a unit confusion bug that mis-sizes a heap buffer. A remote attacker can trigger a pre-auth heap overflow by sending a crafted ClientKeyExchange during the handshake, causing a crash/DoS with high availability impact. 👉Affected: busybox (versions TBD)

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    305 followersView on X

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