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CVE-2021-44568

22
FAUCET Score

CVE-2021-44568 describes two heap-overflow vulnerabilities in openSUSE/libsolv, specifically within the resolve_dependencies function, affecting libsolv versions through December 13, 2020. These vulnerabilities, rated Medium (CVSS 6.5), could lead to a remote Denial of Service due to unauthenticated network attacks requiring user interaction. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

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

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.79%
Probability of exploitation in next 30 days
EPSS Percentile
76.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0179 is in the 88th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 (3)

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 (1)

redhatCVE-2021-44568Low

libsolv: heap-overflows in resolve_dependencies function

Feb 21, 2022

References

github.com / openSUSE/libsolv/issues/425
ExploitIssue TrackingThird Party Advisory
github.com / yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940
ExploitThird Party Advisory
github.com / yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995
ExploitThird Party Advisory