7.5

CVE-2019-18874: psutil_project psutil Double Free

Modified
AliasesALPINE-CVE-2019-18874MGASA-2019-0370GHSA-qfc5-mcwq-26q8
Published 12-11-2019Last modified 05-08-2024

Vulnerability summary

CVE-2019-18874 is a high (CVSS 7.5) Double Free vulnerability in psutil_project psutil. EPSS estimates a 3.52% chance of exploitation in the next 30 days, higher than 89.2% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
3.52%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 3
RHSA-2020:4299RHSA-2021:1313RHSA-2021:4162SUSE-RU-2020:2072-1SUSE-SU-2019:3068-1SUSE-SU-2020:1901-1

Timeline

  1. 12-11-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

psutil (aka python-psutil) through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object.

CVSS metrics

8 scores · 6 sources · 4 versions

EPSS trend

Probability

3.52%

Chance of exploitation in the next 30 days

Percentile

89%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.52% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat6 products
  • python-psutil< 0:5.6.6-1.el7ar | < 0:5.4.3-11.el8
  • python-psutil-debuginfo< 0:5.6.6-1.el7ar
  • python-psutil-debugsource< 0:5.4.3-11.el8
  • python2-psutil< 0:5.6.6-1.el7ar
  • python3-psutil< 0:5.4.3-11.el8
Alpine2 products
  • py-psutil< 5.6.3-r1 | < 5.4.6-r1 | < 5.5.0-r1
  • py3-psutil< 5.6.7-r0
Debian1 product
  • python-psutil< 5.6.7-1 | < 2.1.1-1+deb8u1
Mageia1 product
  • python-psutil< 5.6.7-1.mga7
Psutil_project1 product
PyPI1 product
  • psutil< 5.6.6
Ubuntu1 product
  • python-psutil< 3.4.2-1ubuntu0.1 | < 5.4.2-1ubuntu0.1

7 vendors · 13 products

References

36 links
Show all 36 references