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CVE-2021-3200

17
FAUCET Score

CVE-2021-3200 is a low-severity buffer overflow vulnerability in libsolv, specifically affecting versions from 2020-12-13, and impacting products like openSUSE and Oracle Communications Cloud Native Core Policy. The vulnerability, located in the testcase_read function, could lead to a denial of service. With a CVSS score of 3.3, it requires local access and user interaction for exploitation, but has a low impact on availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.7.17CPE matchmatch criteria
cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:*
1.15.0CPE matchmatch criteria
cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.15.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.3LOW

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
1.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 75th percentile among its peer group of 577 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.0 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 (8)

microsoftpatch availablevia msrc
Product: cm1 libsolv 0.7.19-1 on CBL Mariner 1.0Fixed in: 0.7.19-1
microsoftpatch availablevia msrc
Product: 19002-16820Fixed in: 0.7.19-1
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libsolv-0:0.7.19-1.el8
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
redhatno patchvia redhat_api
Product: Red Hat Ansible Automation Platform 1.2Fixed in: libsolv
redhatend of lifevia redhat_api
Product: Red Hat Update Infrastructure 3 for Cloud ProvidersFixed in: libsolv

Vendor Advisories (2)

microsoft2021-May/CVE-2021-3200Low

Buffer overflow vulnerability in libsolv 2020-12-13 via the Solver * testcase_read(Pool *pool FILE *fp const char *testcase Queue *job char **resultp int *resultflagsp function at src/testcase.c: line 2334 which could cause a denial of service

May 11, 2021
redhatCVE-2021-3200Low

libsolv: heap-based buffer overflow in testcase_read() in src/testcase.c

Dec 13, 2020

References

github.com / openSUSE/libsolv/issues/416
ExploitIssue TrackingThird Party Advisory
github.com / yangjiageng/PoC/blob/master/libsolv-PoCs/PoC-testcase_read-2334
ExploitThird Party Advisory
oracle.com / security-alerts/cpuapr2022.html
PatchThird Party Advisory