ColPack 1.0.10 through 9a7293a has a predictable temporary file (located under /tmp with a name derived from an unseeded RNG).

published 2024-12-09 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-52812

cvss: 6.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

ColPack 1.0.10 through 9a7293a has a predictable temporary file (located under /tmp with a name derived from an unseeded RNG). The impact can be overwriting files or making ColPack graphing unavailable to other users.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-55566 updated 2025-11-21 cvss 6.6

colpack: predictable /tmp file due to unseeded RNG usage in displayGraph()

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 19 mo ago (2025-04-04)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.6	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

Classification

Weakness

CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)

References

Sources

CVE List CVE-2024-55566
NVD CVE-2024-55566

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary