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CVE-2020-8632

16
FAUCET Score

CVE-2020-8632 describes a vulnerability in cloud-init versions through 19.4, where the default password length generated by the rand_user_password function is too short, making it easier for attackers to guess passwords. This affects various distributions including Canonical, Debian, and OpenSUSE cloud-init implementations. Rated as Medium severity (CVSS 5.5), it requires local access and low privileges to exploit, potentially leading to high confidentiality impact by allowing unauthorized access to systems. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 19.4CPE matchmatch criteria
cpe:2.3:a:canonical:cloud-init:*:*:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 85th percentile among its peer group of 15,903 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 19.1-5
microsoftpatch availablevia msrc
Product: cm1 cloud-init 19.1-5 on CBL Mariner 1.0Fixed in: 19.1-5
microsoftpatch availablevia msrc
Product: 19182-16820Fixed in: 19.1-5
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 19.1-5
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: cloud-init-0:19.4-11.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: cloud-init-0:19.4-7.el7
View patch

Vendor Advisories (3)

microsoft2020-Aug/CVE-2020-8632

CVE-2020-8632

Aug 11, 2020
microsoft2020-Feb/CVE-2020-8632Moderate

In cloud-init through 19.4 rand_user_password in cloudinit/config/cc_set_passwords.py has a small default pwlen value which makes it easier for attackers to guess passwords.

Feb 11, 2020
redhatCVE-2020-8632Moderate

cloud-init: Too short random password length in cc_set_password in config/cc_set_passwords.py

Feb 5, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-03/msg00042.html
Mailing ListThird Party Advisory
bugs.launchpad.net / ubuntu/+source/cloud-init/+bug/1860795
Issue TrackingPatchThird Party Advisory
github.com / canonical/cloud-init/pull/189
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2020/02/msg00021.html
Mailing ListThird Party Advisory