CVE-2026-19023Disclosure

LOWCVSS 6.8 · MEDIUM

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

Untrusted pointer dereference in the render_bin_output function in the h5dump tool in HDF5 before 2.3.0 allows attackers to cause a denial of service via a variable-length string dataset with more than one element dumped in binary mode, which corrupts the per-element stride calculation and causes subsequent elements to be read from a misaligned offset and dereferenced as a pointer.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-822

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://www.cve.org/CVERecord?id=CVE-2026-19023

Full discourse1 post

CVE@CVEnew46d
Disclosure
CVE-2026-19023 Untrusted pointer dereference in the render_bin_output function in the h5dump tool in HDF5 before 2.1.1 allows attackers to cause a denial of service via a variable-l… https://www.cve.org/CVERecord?id=CVE-2026-19023
Post summary
The text announces CVE-2026-19023, describing a pointer dereference bug in HDF5’s h5dump tool that can lead to a denial‑of‑service, without mentioning PoC, exploit code, active exploitation, or patches.
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