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CVE-2021-33929

24
FAUCET Score

CVE-2021-33929 is a buffer overflow vulnerability in the pool_disabled_solvable function within libsolv versions prior to 0.7.17, primarily affecting openSUSE. This flaw carries a high CVSS score of 7.5, indicating it can be exploited remotely with low complexity to cause a Denial of Service. There is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.7.17CPE matchmatch criteria
cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.44%
Probability of exploitation in next 30 days
EPSS Percentile
70.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0144 is in the 52nd percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 (6)

microsoftpatch availablevia msrc
Product: 19002-16820Fixed in: 0.7.19-1
microsoftpatch availablevia msrc
Product: cm1 libsolv 0.7.19-1 on CBL Mariner 1.0Fixed in: 0.7.19-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libsolv-0:0.7.16-3.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.11 for RHEL 7Fixed in: libsolv-0:0.7.22-1.el7pc
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.11 for RHEL 8Fixed in: libsolv-0:0.7.22-1.el8pc
View patch
redhatend of lifevia redhat_api
Product: Red Hat Update Infrastructure 3 for Cloud ProvidersFixed in: libsolv

Vendor Advisories (2)

microsoft2021-Sep/CVE-2021-33929Important

Buffer overflow vulnerability in function pool_disabled_solvable in src/repo.h in libsolv before 0.7.17 allows attackers to cause a Denial of Service.

Sep 14, 2021
redhatCVE-2021-33929Moderate

libsolv: heap-based buffer overflow in pool_disabled_solvable() in src/repo.h

Dec 13, 2020

References

github.com / openSUSE/libsolv/issues/417
ExploitIssue TrackingThird Party Advisory